VH1's hit series Free Radio -- at least I think it's a hit because it got renewed for a second season and I like it -- chronicles the exploits of an idiot intern, played by Lance Krall, who accidentally winds up on the air when shock jock Howard Stern Rip Rebel defects to satellite radio. Lance is crass, rude, incredibly stupid, and barely knows who the guests are. And for whatever reason, the show's an instant hit, to the chagrin of the station manager. There's your premise in a nutshell. But that's not even why it works.

The show features real celebrities coming on as if it were a real morning radio show. They generally attempt to plug whatever it is they're doing but get shut down by Lance's idiocy. Hell, this past week John Stamos got humped by a dog, Jim Parsons was told he should quit his crappy show and become a reality show host, and Kathy Griffin threatened to kill Lance. It's a blast seeing these celebrities so out of their element; most of the dialogue is ad-libbed. You can catch the insanity initially on Thursday nights at 11pm Eastern, and then again and again.

'ER'
(9PM, NBC) series finale
The Emmy, Golden Globe and Peabody-winning series closes out its 15-season run with an appropriate send-off that will give fans updates on their favorite characters.

More 'ER' friends – Eriq LaSalle, Alex Kingston, Sherry Stringfield, Laura Innes and Thandie Newton – return to the hospital tonight to support John Carter (Noah Wyle) as he opens his new medical center.

Meanwhile, the new crew gets some final screen time, too, as John Stamos' Gates treats a teen whose boozy games have led to alcohol poisoning, and Carter helps a new intern (Alexis Bledel) whose pregnant patient is about to deliver twins. Hmmm, a 'Gilmore Girl' in the ER? Sounds like spin-off potential to us ...