* How I Met Your Mother (8/7c CBS)
The 100th episode calls for something really special, and that would be a... wait for it (more later). Barney meets a beautiful bartender, played by Stacy Keibler, who makes him decide between her and his trademark suits, and the dilemma leads to (OK, now it's time)... a big musical number! Barney takes to the streets, along with the rest of the cast, to perform "Nothing Suits Me Like a Suit," and Harris is well-suited for the inspired number with his Broadway background. Rachel Bilson and Tim Gunn also guest star.
* House (8/7c Fox)
In the six weeks since we left House and Wilson in the kitchen of that spacious loft apartment that Wilson bought out from under Cuddy (and Lucas), our boys appear to have already moved in, and both are more than a little intrigued by a new neighbor. Bromance, it seems, goes only so far. At the hospital, meanwhile, the patient who is inexplicably dying is a drug dealer (Ethan Embry) with a secret, and Chase, Taub and Thirteen team up to play a practical joke on Foreman.
* Anthony Bourdain: No Reservations (10/9c Travel)
TV's coolest globe-trotting chef is back for another season of his highly entertaining travelogue, which takes him around the world, exploring unique cultures and cuisines - both near and far. In the Season 6 opener, Tony ventures to Panama, which boasts one of the fastest growing economies in Central America. Other spots he'll see this season include Istanbul, Prague and New York's Hudson Valley.
* Fantasia for Real (10/9c VH1)
You might think that Fantasia is living the dream after winning American Idol, but the title of her autobiography, Life Is Not a Fairy Tale, is closer to the truth as six people in her family are living on her dwindling income. As the reality series that looks at her day-to-day life opens, she's recording a single, "Move on Me," and the heat is on for it to be a hit. Meanwhile, her brother Tiny has plans for the pool house at her mansion that aren't helping Fantasia's financial straits.
* American Masters (9/8c PBS)
The documentary series' 23rd season opens with a delightful profile of Sam Cooke (1931-64), one of the originators of soul music and the man responsible for such classics as "You Send Me," "Havin' a Party," "Chain Gang" and "A Change Is Gonna Come." The bio also delves into his personal life and involvement in the civil-rights movement, plus features a wealth of archival clips, including his swingin' rendition of Bob Dylan's "Blowin' in the Wind."