STAYING IN? Ellen Gray's TV picks

* BILL COSBY: FAR FROM FINISHED. 8 p.m. Saturday, Comedy Central

Bill Cosby, henpecked husband? That's his story, and he's sticking to it. In his first concert special in 30 years, Philly's best known comic ruminates entertainingly on marriage, friendship, parenthood and the myriad adventures of everyday life. Don't read too much into the 76-year-old being seated onstage - he was doing it that way in 1983, too.

* GETTING ON. 10 p.m. Sunday, HBO.

Adapted by "Big Love" creators Mark V. Olsen and Will Scheffer from a British series, this satirical comedy stars Laurie Metcalf, Alex Borstein, Niecy Nash and Mel Rodriguez as colleagues on a geriatric ward. You can almost smell the disinfectant.

* DOCTOR WHO 50TH ANNIVERSARY SPECIAL: THE DAY OF THE DOCTOR. Global simulcast at 2:50 p.m. Saturday, BBC America.

* AN ADVENTURE IN SPACE AND TIME. 11 p.m. Sunday, BBC America.

Whovians will already have this weekend's "Doctor Who" celebration on their radar. The anniversary special features the return of David Tennant, the 10th Doctor, in a new story with his successor, Matt Smith. And for those who missed Friday's debut of the very entertaining "An Adventure in Space and Time," starring David Bradley ("Game of Thrones") as the first Doctor, it's being rerun Sunday.