Fox (8pm - 9pm): GLEE "Silly Love Songs"

Hallmark (9pm - 11pm): Countdown to Valentine's Day (THE GOOD WITCH)

Syndication (check local listings): WHEEL OF FORTUNE "Sweethearts Week"

ABC (8pm - 9:30pm): THE MIDDLE "Valentine's Day II"; BETTER WITH YOU "Better with Valentine's Day"; MODERN FAMILY "Bixby's Back"

CBS (10pm - 11pm): BLUE BLOODS "My Funny Valentine"

Food Network (9pm - 10pm): CUPCAKE WARS "Valentine's Day"

GAC (9pm - 11pm): TOP 20 LOVIN' & LEAVIN' SONGS

Hallmark (9pm - 11pm): Countdown to Valentine's Day (THE GOOD WITCH'S GARDEN)

Syndication (check local listings): WHEEL OF FORTUNE "Sweethearts Week"

tbs (10pm - 10:30pm): ARE WE THERE YET? "The Valentine's Day Episode"

Hallmark (9pm - 11pm): Countdown to Valentine's Day (THE GOOD WITCH'S GIFT)

NBC (8pm - 11pm): Romantic Episodes of COMMUNITY ("Early 21 Century Romanticism), PERFECT COUPLES ("Perfect Jealousy"), THE OFFICE ("PDA"), PARKS & RECREATION ("Ron & Tammy, Part 2"), 30 ROCK ("Double-Edged Sword"), OUTSOURCED ("The Todd Couple")

Syndication (check local listings): WHEEL OF FORTUNE "Sweethearts Week"

A&E (4pm - 4am): CRIMINAL MINDS Marathon

ABC (8pm - 9pm): BE MY VALENTINE, CHARLIE BROWN & A CHARLIE BROWN VALENTINE

AMC (6pm - 1am): Rocky Movie Marathon (6pm: ROCKY IV; 8pm: ROCKY V; 10:30pm: ROCKY V)

bio (8pm - 4am): BIOGRAPHY Marathon

Comedy Central (9pm - Midnight): COMEDY CENTRAL PRESENTS Marathon

Hallmark (9pm - 11pm): Countdown to Valentine's Day (SMOOCH)

MTV2 (9pm - Midnight): FANTASY FACTORY Marathon

MTV2 (Midnight - 6am): ROB & BIG Marathon

Nat Geo Wild (8pm - 2am): HUNTER AND HUNTED Marathon

Oxygen (4pm - 2am): Movie Marathon (4pm: MY BOSS'S DAUGHTER; 6pm: LICENSE TO WED; 8pm: JUST FRIENDS; 10pm: JUST FRIENDS; Midnight: LICENSE TO WED)

PBS (check local listings): THE CAT IN THE HAT KNOWS A LOT ABOUT THAT! Valentine's episode

Science (8pm - 1am): HOW IT'S MADE Marathon

Spike (7pm - 11pm): 1,000 WAYS TO DIE Marathon

style (Noon - 8pm): SUPERNANNY Marathon

Sundance (7pm - 10pm): THE DAY BEFORE Marathon

Syndication (check local listings): WHEEL OF FORTUNE "Sweethearts Week"

Teen Nick (5pm - 11pm): DEGRASSI Marathon

Travel (9pm - 10pm): GHOST ADVENTURES Valentine's Day Special

Travel (10pm - 11pm): GHOSTLY LOVERS

VH1 (7pm - 11pm): 100 GREATEST HARD ROCK SONGS Marathon

Wedding Central (10am - 8pm): Platinum Valentine Weekend

A&E (8am - 11am): SELL THIS HOUSE! Marathon

A&E (7pm - 4am): BEYOND SCARED STRAIGHT Marathon

ABC Family (7:30am - 12:30am): Movie Marathon (7:30am: AU PAIR; 9:30am: UPTOWN GIRLS; 11:30am: ELLA ENCHANTED; 1:30pm: CHEAPER BY THE DOZEN; 3:30pm: WHAT A GIRL WANTS; 6pm: NANNY MCPHEE; 8pm: SNOW WHITE AND THE SEVEN DWARFS; 10pm: ENCHANTED)

AMC (4pm - 4am): THE GODFATHER Marathon

Animal Planet (1pm - 7pm): CATS 101 Marathon

Animal Planet (8pm - 9pm): Series premiere of MUST LOVE CATS

Boomerang (Noon - 8:30pm): Johnny Bravo St. Valentine's Marathon (JOHNNY BRAVO)

Bravo (6pm - 2am): HOUSE Marathon

Chiller (8am - 2pm): TALES FROM THE DARKSIDE Marathon

Chiller (8pm - 2am): FEAR FACTOR COUPLES Marathon

CMT (8pm - 10pm): 40 GREATEST LOVE SONGS

Comedy Central (2:30pm - 3:45am): Movie Marathon (2:30pm: LITTLE MISS SUNSHINE; 4:30pm: ACCEPTED; 6:30pm: WEDDING CRASHERS; 9pm: 40-YEAR-OLD VIRGIN; 11:15pm: EMPLOYEE OF THE MONTH; 1:45am: AMERICAN PIE)

Discovery Fitness & Health (8pm - 2am): UNTOLD STORIES OF THE ER Marathon

ESPN (Noon - 8pm): College Basketball

ESPN2 (Noon - Midnight): College Basketball

GMC (10am - 2pm): SISTER, SISTER Marathon

GMC (2pm - 5pm): 227 Marathon

GSN (9am - 6pm): BAGGAGE Marathon

GSN (6pm - 1am): HIGH STAKES POKER Marathon

Hallmark (9am - 3am): Countdown to Valentine's Day (9am: BACK TO YOU AND ME; 11am: DAD'S HOME; 1pm: FOLLOW THE STARS HOME; 3pm: SMOOCH; 5pm: BACK TO YOU AND ME; 7pm: ELEVATOR GIRL; 9pm: ACCIDENTALLY IN LOVE; 11pm: ACCIDENTALLY IN LOVE; 1am: ACCIDENTALLY IN LOVE)

History (8am - 8pm): AMERICAN PICKERS Marathon

ID (10am - 5pm): WICKED ATTRACTION Marathon

ID (5pm - 6am): WHO THE BLEEP DID I MARRY Marathon

Lifetime (11am - 11pm): Movie Marathon (11am: SHE'S THE ONE; 1pm: A VALENTINE CAROL; 3pm: FOREVER LOVE; 5pm: THE LAKE HOUSE; 7pm: BECAUSE I SAID SO; 9pm: NIGHTS IN RODANTHE)

MTV2 (6am - 1pm): BULLY BEATDOWN Marathon

MTV2 (1pm - 9pm): PROS VS JOES - ALL STARS Marathon

MTV2 (9pm - 6am): NITRO CIRCUS Marathon

Nat Geo (9am - 7pm): BORDER WARS Marathon

Nat Geo Wild (8am - 6pm): REBEL MONKEYS Marathon

Nick (9:30am - Noon): Crush Week (9:30am: SPONGEBOB SQUAREPANTS "Love That Squid" & "Tunnel of Glove"; 10am: T.U.F.F. PUPPY "Thunder Dog" & "Snap Dad"; 10:30am: THE PENGUINS OF MADAGASCAR "Love Hurts" & "The Officer X Factor"; 11am: THE FAIRLY ODDPARENTS "Love Triangle"; 11:30am: PLANET SHEEN "The Oomlick Maneuver")

Nick (8pm - 10pm): Crush Week (8pm: ICARLY "iHire an Idiot"; 8:30am: BIG TIME RUSH "Big Time Girlfriends"; 9am: TRUE JACKSON, VP "Field Trip"; 9:30am: VICTORIOUS "The Wood")

OWN (9am - 12:30pm): CRISTINA FERRARE'S BIG BOWL OF LOVE Marathon

Ovation (1pm - 5am): Royal Marathon (1pm: ROYAL LONDON; 2pm: ROYAL OPULENCE; 2:30pm: ICONS - DIANA; 3pm: THE KING'S SPEECH; 3:30pm: BERTIE & ELIZABETH; 5:30pm: WILLIAM & KATE: A MODERN ROYAL ROMANCE; 6pm: HOW TO BE A PRINCE; 8pm: DIANA'S DRESSES; 9pm: HER LIFE IN JEWELS; 10pm: DIANA EVERLASTING; 11pm: DIANA'S DRESSES; Midnight: HER LIFE IN JEWELS; 1am: DIANA EVERLASTING; 2am: HOW TO BE A PRINCE; 4am: WILLIAM & KATE - A MODERN ROYAL ROMANCE; 4:30am: ICONS - DIANA)

Oxygen (8am - 8pm): AMERICA'S NEXT TOP MODEL Marathon

Oxygen (8pm - 1:30am): THE NOTEBOOK, shown twice

Planet Green (8pm - 2am): BOOMTOWN Marathon

Sleuth (6am - 6am): Old School Saturday Marathon (CHARLIE'S ANGELS)

Sundance (2:30pm - 5pm): SIGNE CHANEL Marathon

TLC (7pm - 3am): DATELINE: REAL LIFE MYSTERIES Marathon

TNT (4am - 10am): LAW & ORDER Marathon

TV Guide (10pm - 2am): WEEDS Marathon

TV One (Noon - 8pm): A DIFFERENT WORLD Marathon

TV One (10pm - 6am): AMEN Marathon

USA (11am - 11pm): Breaking Up Is Hard To Do Marathon (11am: OVER HER DEAD BODY; 1pm: WELCOME HOME ROSCOE JENKINS; 3pm: I NOW PRONOUNCE YOU CHUCK AND LARRY; 5:30pm: SEX AND THE CITY; 8:30pm: THE BREAK-UP)

VH1 Classic (3pm - 8pm): 100 GREATEST ARTISTS Marathon

Wedding Central (10am - 8pm): Platinum Valentine Weekend

A&E (5pm - 4am): CRIMINAL MINDS Marathon

ABC Family (7am - 11pm): Movie Marathon (7am: GIRLS JUST WANT TO HAVE FUN; 9am: WHAT A GIRL WANTS; 11:30am: CHEAPER BY THE DOZEN; 1:30pm: NANNY MCPHEE; 3:30pm: SHOW WHITE AND THE SEVEN DWARFS; 5:30pm: ENCHANTED; 8pm: PIRATES OF THE CARIBBEAN - THE CURSE OF THE BLACK PEARL)

AMC (3:30pm - 5am): THE GODFATHER II Marathon

Animal Planet (2pm - 6am): FATAL ATTRACTIONS Marathon

bio (6pm - 4am): I SURVIVED / I SURVIVED...BEYOND AND BACK Marathon

Bravo (4pm - 11pm): REAL HOUSEWIVES OF BEVERLY HILLS / ATLANTA

CBS (8pm - 11:30pm): THE GRAMMY AWARDS

Chiller (6pm - 4am): BUFFY THE VAMPIRE SLAYER Marathon

Comedy Central (2:30pm - 11:15pm): Movie Marathon (2:30pm: ACCEPTED; 4:30pm: TOMMY BOY; 6:30pm: EMPLOYEE OF THE MONTH; 9pm: 40-YEAR-OLD VIRGIN)

Current (6pm - Midnight): DATING & RELATIONSHIPS Marathon

Discovery (7pm - 3am): THE SCIENCE OF SEX APPEAL; THE SCIENCE OF LUST; ANATOMY OF SEX

Disney XD (8am - 1pm): AVENGERS - EARTH'S MIGHTIEST HEROES Marathon

ESPN2 (7:30pm - 3am): 2010 WORLD SERIES OF POKER Marathon

FX (7am - 11:30pm): Movie Marathon (7am: THE WEDDING SINGER; 9am: MADE OF HONOR; 11am: 27 DRESSES; 1:30pm: WHAT HAPPENS IN VEGAS; 4pm: STEP BROTHERS; 6pm: MR & MRS SMITH; 9pm: WANTED)

Fox (8pm - 8:30pm): Valentine's episode of THE SIMPSONS "The Blue and the Gray"

fuse (2:30pm - 12:30am): Tupac Marathon

GAC (6pm - 8pm): TOP 10 LOVIN' & LEAVIN' SONGS

GSN (9am - 6pm): THE NEWLYWED GAME Marathon

Hallmark (9am - 1pm): Countdown to Valentine's Day (9am: LOVE IS A FOUR LETTER WORD; 11am: MEET MY MOM; 1pm: ELEVATOR GIRL; 3pm: GROWING THE BIG ONE; 5pm: LOVE IS A FOUR LETTER WORD; 7pm: MEET MY MOM; 9pm: ACCIDENTALLY IN LOVE)

Hallmark Movie Channel (6am - 6am): MATLOCK Marathon

History (1pm - 10pm): AX MEN Marathon

IFC (Noon - 3:30pm): THE BEN STILLER SHOW Marathon

Lifetime (11am - 2am): Movie Marathon (11am: MY FIRST WEDDING; 1pm: BECAUSE I SAID SO; 3pm: RAISING HELEN; 5:30pm: PS, I LOVE YOU; 8pm: THE HOLIDAY; 11pm: THE HOLIDAY)

MTV2 (6am - 11am): MTV CRIBS Marathon

MTV2 (1:30pm - 6pm): WILD 'N OUT Marathon

MTV2 (6pm - 11pm): RUN'S HOUSE Marathon

MTV2 (1:30am - 6am): PIMP MY RIDE Marathon

Nat Geo (2pm - 8pm): HARD TIME Marathon

Ovation (Noon - 5:30pm): Royal Marathon (Noon: ROYAL OPULENCE; 12:30am: ROYAL LONDON; 1:30pm: BERTIE & ELIZABETH; 3:30pm: THE QUEEN'S SISTER)

Oxygen (Noon - 10pm): SNAPPED Marathon

Planet Green (8am - 2pm): PREHISTORIC Marathon

Science (6am - Noon): BIG, BIGGER, BIGGEST Marathon

Science (Noon - 5pm): COLOSSAL CONSTRUCTION Marathon

Science (5pm - 3am): METEORITE MEN Marathon

Sleuth (6am - 9pm): WALKER, TEXAS RANGER Marathon

SOAPnet (3pm - 7pm): Valentine Vows Marathon (3pm: ALL MY CHILDREN Jesse and Angie re-married; 4pm: ALL MY CHILDREN: Angie is hostage; 5pm: ONE LIFE TO LIVE Blair and Walker about to be married; 6pm: GENERAL HOSPITAL: Lucky and Elizabeth)

Syfy (1:30pm - 11:30pm): Star Trek Movie Marathon (1:30pm: STAR TREK - THE MOTION PICTURE; 4:30pm: STAR TREK IV - THE VOYAGE HOME; 7pm: STAR TREK VI - THE UNDISCOVERED COUNTRY; 9pm: STAR TREK - FIRST CONTACT)

TLC (1pm - 7pm): 48 HOURS: HARD EVIDENCE Marathon

TLC (7pm - 3am): WILLIAM, KATE & EIGHT ROYAL WEDDINGS; THE QUEEN

TNT (6am - Noon): LAW & ORDER Marathon

Travel (Noon - 6pm): PARADISE Marathon (Deep Fried; Bacon; Bar Food; Ribs; Hamburger; Steak)

truTV (Noon - 6pm): WORLD'S DUMBEST Marathon

truTV (7pm - 10pm): COPS Marathon

TV Land (4pm - 10pm): MARRIED WITH CHILDREN Marathon

TV One (11pm - 4:30am): MARTIN Marathon

USA (9am - 11pm): Heart Burn Marathon (BURN NOTICE)

VH1 Classic (11:30am - 6pm): ROCK 'N' ROLL FANTASY CAMP Marathon

WE (4pm - 10pm): MY FAIR WEDDING Marathon

Wedding Central (10am - 8pm): Platinum Valentine Weekend

WGN America (7pm - 10pm): HOW I MET YOUR MOTHER Marathon

Animal Planet (9am - 7pm): PIT BULLS AND PAROLEES Marathon

Animal Planet (7pm - 6am): FATAL ATTRACTIONS Marathon

Bravo (10am - 5pm): MILLIONAIRE MATCHMAKER Marathon

CBS (2pm - 3pm): THE TALK Singles Audience for Valentine's Day

CBS (8pm - 8:30pm): HOW I MET YOUR MOTHER "Desperation Day"

CBS (9:30pm - 10pm): MIKE & MOLLY "First Valentine's Day"

CBS (11:30pm - 12:30am): LATE SHOW WITH DAVID LETTERMAN: For Dave's Valentine's Day treat, he reveals the cover of the Sports Illustrated Swimsuit Issue

Current (11am - 4pm): DATING & RELATIONSHIPS Marathon

CW (8pm - 10pm): Valentine's episodes for 90210 "Revenge with the Nerd" & GOSSIP GIRL "It-Girl Happened One Night"

Discovery Fitness & Health (8pm - 11pm; 11pm - 2am): Strange Love Marathon (8pm: MY HUSBAND'S THREE WIVES; 9pm: SEXTISTICS - YOUR LOVE LIFE; 10pm: SEX ROBOT)

Flix (7:15am - 2am): Movie Marathon (7:15am: HEARTBREAKERS; 9:30am: SHIRLEY VALENTINE; 11:20am: FUNNY ABOUT LOVE; 1:05pm: FOOL FOR LOVE; 2:55pm: PATERNITY; 4:30pm: SURRENDER; 6:05pm: FUNNY ABOUT LOVE; 8pm: HEARTBREAKERS; 10:05pm: SHIRLEY VALENTINE; Midnight: FOOL FOR LOVE)

fuse (6am - 6am): Lil' Wayne Takeover

GAC (2pm - 4pm; 9pm - 11pm; 1am - 3am): TOP 10 LOVIN' & LEAVIN' SONGS

Hallmark (4pm - Midnight): Movie Marathon (4pm: A VALENTINE'S DATE; 6pm: ICE DREAMS; 8pm: ICE CASTLES; 10pm: ICE CASTLES)

Hallmark Movie Channel (6am - 9pm): Herbie the Love Bug Movie Marathon (6am: HERBIE GOES TO MONTE CARLO; 8:30am: HERBIE GOES BANANAS; 10:30am: THE LOVE BUG; 12:30pm: HERBIE RIDES AGAIN; 2:30pm: HERBIE GOES TO MONTE CARLO; 5pm: HERBIE GOES BANANAS; 7pm: THE LOVE BUG)

Hub (6pm - 9pm): Valentine's Day Marathon Highlighting the Spirit of Friendship (6pm: STRAWBERRY SHORTCAKE'S BERRY BITTY ADVENTURES "A Stitch in Time" & "Where Oh Where Has My Blueberry Gone"; 7pm: MY LITTLE PONY FRIENDSHIP MAGIC "Fall Weather Friends" & "Suited for Success"; 8pm: POUND PUPPIES "The Prince and the Runner" & "King of the Heap")

Hub (9pm - 9:30pm): THE WONDER YEARS "St. Valentine's Day"

Hub (10pm - 10:30pm): HAPPY DAYS "Be My Valentine"

Lifetime (9am - 9:30am): FRASIER "Three Valentines"

Lifetime (2pm - 3pm): GREY'S ANATOMY "Valentine's Day Massacre"

MTV2 (9am - Noon): YO MOMMA Marathon

MTV2 (Noon - 3pm): WILD 'N OUT Marathon

MTV2 (3pm - 6pm): PRANKED Marathon

MTV2 (6pm - 9pm): ROB & BIG Marathon

Nat Geo Wild (7pm - 3am): MY LIFE IS A ZOO Marathon

Nick (9am - 2pm): Valentine's Day Preschool Marathon (9am: DORA THE EXPLORER "The Grumpy Old Troll Gets Married"; 9:30am: DORA THE EXPLORER "Te Amo"; 10am: GO, DIEGO, GO! "Sammy’s Valentine"; 10:30am: MAX & RUBY "Max’s Valentine’s Day"; 11am: BUBBLE GUPPIES "Bubble Puppy"; 11:30am: "Special Delivery"; Noon: TEAM UMIZOOMI "Special Delivery" Noon: DORA THE EXPLORER "The Grumpy Old Troll Gets Married"; 12:30pm: DORA THE EXPLORER "Te Amo"; 1pm: THE WONDER PETS! "Save the Lovebugs; Save the Skunk Rocker"; 1:30pm: THE BACKYARDIGANS "Special Delivery")

Nick at Nite (8pm - Midnight): Valentine's Day episodes of MY WIFE AND KIDS, EVERYBODY HATES CHRIS, GEORGE LOPEZ and THE NANNY

Oxygen (10am - 5pm): LOVE GAMES - BAD GIRLS NEED LOVE TOO Marathon

Oxygen (5pm - 1am): THE BAD GIRLS CLUB Marathon

Showtime (5:45pm - 7:15pm): I HATE VALENTINE'S DAY

Sleuth (6am - 6am): Valentine's Marathon (WALKER, TEXAS RANGER)

Spike (6pm - Midnight): AUCTION HUNTERS Marathon

Sundance (8pm - Midnight): GIRLS WHO LIKE BOYS WHO LIKE BOYS Marathon

tbs (8pm - 11pm): FAMILY GUY Marathon

TLC (5:30pm - 6pm): KITCHEN BOSS "Valentine's Day"

Travel (8pm - 4am): ANTHONY BOURDAIN NO RESERVATIONS Marathon

USA (6am - 6pm): Dr. Love Marathon (HOUSE)

USA (8pm - 9pm): Westminster Kennel Club - Day One

WE (10am - 5pm): MY FAIR WEDDING Marathon

WE (8pm - 1am): THE GOLDEN GIRLS Marathon