* House (8/7c Fox)
House returns from his three-week baseball break, rested if not quite ready. (He doesn't have his medical license back yet.) He'll be at a medical conference on pharmacology with Cuddy and Wilson when his snoop, Lucas (Michael Weston), unexpectedly shows up. Back at the hospital, tonight's mystery disease has befallen a partying teenage girl whose appendages have swollen for no apparent reason. She also can't distinguish between fact and fiction.
* How I Met Your Mother (8/7c CBS)
When Barney and Robin were falling for each other and unwilling to admit it, Lily tried to make them face their feelings. Now that the couple is unhappy, Lily intervenes again, coming up with a plan to break them up that involves some help from Robin's celebrity friend, Alan Thicke (who appears in a cameo). Speaking of special appearances, Barney may not be easily recognized as his usual self. Let's just say there's a lot more awesomeness to go around these days.
* CSI: Miami (10/9c CBS)
Dr. Ray Langston (Laurence Fishburne) is a busy man this week. In the first of a three-part CSI crossover event, Langston leaves Las Vegas to go to Miami at the behest of Horatio. A severed leg found in the Everglades is discovered to belong to a girl who disappeared in Vegas a week earlier, so Ray hops a plane to the Sunshine State to investigate. But his probe doesn't end there. The story continues Wednesday on CSI: NY and concludes Thursday on CSI: Crime Scene Investigation.
* Lopez Tonight (11/10c TBS)
The late-night chat storm whips up even more when actor and stand-up comic George Lopez gusts in to preside over this new comedy talk show. Like other talkers before it, there will be a monologue, musical and comedy performances, and interviews with entertainers, sports stars, politicians and pop-culture figures. But Lopez, sans interview desk, credits the high-energy Arsenio Hall Show as an influence, and the show aims to bring a spirited party atmosphere that fosters spontaneity and audience interaction. Whether the show actually achieves that, we shall see. In the meantime, Ellen Degeneres, Eva Longoria Parker, NBA star Kobe Bryant and guitarist Carlos Santana are tonight's opening guests.
* How the Beatles Rocked the Kremlin (10/9c PBS)
The Moscow girls may have made the Beatles sing and shout, but the Beatles had an even bigger impact on those Moscow girls (and guys). According to this documentary from director Leslie Woodhead, who filmed the Fabs in Liverpool's fabled Cavern Club back in 1962, their music dented the Iron Curtain in a way that's almost immeasurable. Among those who offer their recollections of those days is Russian deputy prime minister Sergei Ivanov, who claims to have learned English from Beatles records.