“Gossip Girl” (The CW, 9 p.m.) should be in its sixth and final season at least “Gossip Young Women” by now. But even in and out of college, the old gang still acts like kids, I guess, hooking up, breaking up and having drama. Tonight, there’s a big look out for Blake Lively’s Serena, who went missing at the end of last season. Don’t they know she split for a movie career?A fifth season starts for an even more undeserving series, “90210” (The CW, 8 p.m.) which starts with the elopement plans of Naomi and Max sidetracked a bit. Also: Carly Rae Jepsen appears.
A lighter look at the deep is the latest special from SpongeBob SquarePants: “Hello Bikini Bottom” (Nickelodeon, 8 p.m.).
The closed GM plant in Janesville, Wis., has already been a campaign issue his season; Republican Vice Presidential candidate Paul Ryan has said its closing was Obama’s fault; Obama camp has remided him it closed before he took office. What about the people who were left behind with no job?
Brad Lichtenstein’s “As Goes Janesville,” the season premiere of “Independent Lens” (PBS, 10 p.m., check local listings) looks at the fallout, the efforts of the citizenry to help themselves and the sideshow of the governor’s anti-union action and subsequent recall election.
The ascendence of “The Voice” (NBC, 8 p.m.) means they can get even higher profile mentors for each team, it seems. Mary J. Blige, Michael Buble and Rob Thomas are enlisted but the weirdest matching has to be Green Day’s (presumably pre-meltdown) Billy Joe Armstrong helping out Christina Aguilera.
“The Mortified Sessions” (Sundance, 10 p.m.) are usually never more than just slightly embarrassing. Tonight’s confessor: Busy Philipps.
Looks like it’s going to be another season where Bristol Palin’s lapses as a dancer are ignored by home voters on “Dancing with the Stars” (ABC, 8 p.m.).
Postseason baseball continues with Washington at St. Louis (TBS, 4:30 p.m.) and Yankees at Baltimore (TBS, 8 p.m.).
The likes of folks seen in the “Garage Wars” type shows are suspects in tonight’s “Castle” (ABC, 10 p.m.).
Rome, New York and Finland all figure into tonight’s trip on “Anthony Bourdain: No Reservations” (Travel, 9 p.m.).
The renegades get together and decide to do something about all that overgrown greenery on “Revolution” (NBC, 10 p.m.). Or at least they should.
Sometimes the people on “Hoarders” (A&E, 9 p.m.) try to make a case for thie ghings they are saving. The lady saving bottles of human waste will have a lot of explaining to do.
“The Real Housewives of New York City” (Bravo, 9 p.m.) starts the first half of its reunion episode. I’d say fully half of these “Housewives” shows are now reunion shows.
It’s Houston at New York Jets in Monday Night Football (ESPN, 8:30 p.m.).
The month-long Monday night salute to Spencer Tracy continues on Turner Classic Movies, with “Fury” (8 p.m.), “Libeled Lady” (9:45 p.m.), “Test Pilot” (11:30 p.m.), “Edison, the Man” (1:45 a.m.), “I Take This Woman” (3:45 a.m.) and “Boom Town” (5:30 a.m.).
And it’s another one of those marathon nights of “Here Comes Honey Boo Boo” (TLC, 8 p.m.) that will suck you in like a vortex.
Daytime Talk
Kelly & Michael: Ben Affleck, John Cena. Katie Couric: Mary Neal, Akiane Kramarik. The View: Pete Townshend. The Talk: Leighton Meester, Lynette Khalfani-Cox, Joshua Morrow. Ellen DeGeneres: Colin Farrell.
Late Talk
David Letterman: Jack Hanna, Max Greenfield. Jay Leno: Arnold Schwarzeneger, Bubba Watson, the Wallflowers. Jimmy Kimmel: Ben Affleck, Ben Howard. Jimmy Fallon: Ben Affleck, Connie Britton, Cesar Millan, Sun Kil Moon. Craig Ferguson: Lisa Kudrow, Marc Maron (rerun). Carson Daly: W. Kamau Bell, Lianne La Havas, the Hives. Tavis Smiley: Joan Walsh, Ava DuVernay. Jon Stewart: Pete Townshend. Stephen Colbert: Mark Kelly. Conan O’Brien: Tagg, Matt, Josh, Ben & Craig Romney, Rob Corddry, Shinedown (rerun). Chelsea Handler: Jenny McCarthy, Brent Morin, Ingrid Haas, Matt Braunger.