It was never clear what exactly the differences were supposed to be between “Hell’s Kitchen” (Fox, 8 p.m.) and “Master Chef” (Fox, 9 p.m.).

Yes, professional chefs were in the former, amateurs in the latter. Both were hosted by Gordon Ramsey; he’d yell and browbeat contestants in “Hell” but be significantly nicer flanked by other judges in “Master Chef.”

Now playing back to back, and starting new seasons the same night, it might be easier to tell them apart. But I’m not promising anything.

For its new season, fully half the cast of “Real Housewives of New York” (Bravo, 10 pm.) has been replaced. It will take a two hour premiere to introduce Carole Radziwill, Aviva Drescher and Heather Thomson, who are joining just three who remain from past casts – the Countess Luann de Lesseps, Ramona Singer and Sonja Morgan (goodbye, Jill, Cindy and Kelly).

A more uplifting group of glamorous women can be found in the “Push Girls” (Sundance, 10 p.m.), following a handful of Los Angeles women who each have aspirations and drive, despite the fact they all happen to be in wheelchairs. These are women you will want to know.

Its second season premiered last night after the MTV Movie Awards (MTV, 7 p.m.), getting its own rerun, so “Teen Wolf” (MTV, 10 p.m.) is seen again on its regular night.

“America’s Got Talent” (NBC, 8 p.m.) pulls into Austin. “American Ninja Warrior” (NBC, 9 p.m.) moves its competition to Miami.

The 13 remaining candidates on “The Bachelorette” (ABC, 8 p.m.) travel with Emily to Bermuda. So who’s watching the kid?

The nerds at G4 spend the day covering the E3 2012 Live (G4, 5 p.m.), an event celebration the PlayStation E3.

“Kurt Sutter’s Outlaw Empire” (Discovery, 10 p.m.) looks at a big group of organized outlaws: The Gambino Family.

Though the host has been hired by CNN for his own upcoming show, “Anthony Bourdain: No Reservations” (Travel, 9 p.m.) continues down the road, for now. Tonight, in Penag, Malaysia.

“Top Gear” (BBC America, 8:30 p.m.) closes the season with a show featuring a guitarist famous for a top hat, not a top gear: Slash.

“Basketball Wives” (VH1, 8 p.m.) hold part one of their reunion special, on a night when, thoughtfully, there is no NBA playoff game.

Game 3 of the Stanley Cup Final of Devils at Kings (NBC Sports Network, 8 p.m.) moves back to cable.

In baseball, its Dodgers at Phillies (ESPN, 7 p.m.).

Robert Osborne doesn’t have to wait long to present his night of picks this month on Turner Classic Movies. His chance comes tonight, with “The Private Lives of Elizabeth and Essex” (8 p.m.), “The Virgin Queen” (10 p.m.), “The Sting” (midnight), “The Young Philadelphians” (2:15 a.m.) and “Follow that Dream” (4:45 a.m.).

Daytime Talk

Kelly Ripa: Gavin DeGraw, Cat Deeley, Bryant Gumbel. The View: Angie Harmon, Beth Ostrosky Sern. The Talk: Betty White, Mechad Brooks, Mel Robbins. Ellen DeGeneres: Jennifer Aniston, the Skating Aratas (rerun).

Late Talk

David Letterman: Joan Rivers, Dario Franchitti, Silversun Pickups. Jay Leno: Martin Short, Aubrey Plaza, Def Leppard. Jimmy Kimmel: Christina Ricci, Adam Perry lang, fun. Jimmy Fallon: Jason Schwartzman, Angie Harmon, Regina Spektor. Craig Ferguson: Guy Pearce, Jessica St. Clair (rerun). Tavis Smiley: Gail Collins. Carson Daly: Dr. Sanjay Gupta, Josh Baze, the Naked and Famous (rerun). Jon Stewart: Thomas Mann, Norman Ornstein. Stephen Colbert: Rep. John Lewis. Conan O’Brien: David Mizejewski, Aaron Paul, Neon Trees. Chelsea Handler: Mary J. Blige, Ben Gleib, Margaret Cho, Ross Mathews.