Weekend TV: 'Walking Dead,' 'Vinyl,' John Oliver and more

* THE WALKING DEAD. 9 p.m. Sunday, AMC.

Season 6 resumes. Because nothing says Valentine's Day like the ever-present danger of a massacre by (or of) the staggering hordes of the undead.

* LAST WEEK TONIGHT WITH JOHN OLIVER. 11 p.m. Sunday, HBO.

The Peabody-winning series returns for a fourth season of finding the funny in stories too complicated (or ratings-unfriendly) for most TV news shows. Now that it's 2016, Oliver may be forced to acknowledge the U.S. presidential elections, but chances are he'll do it in ways we least expect.

* VINYL. 9 p.m. Sunday, HBO.

Martin Scorsese directed the two-hour pilot of this Valentine to the 1970s in which a hard-living record-label chief (Bobby Cannavale, pictured) tries to save his company while rekindling his romance with the music that got him into the business in the first place. Producers are Scorsese, Terence Winter (Boardwalk Empire, The Sopranos) and Mick Jagger, whose son, James, plays the lead singer of a band called The Nasty Bits.

* THE GOOD WIFE. 9 p.m. Sunday, CBS3.

Alicia returns to Lockhart, Agos and Lee, but has trouble adjusting. Here in the real world, some of of us are still adjusting to the idea that this episode begins the final nine of the series.

* SATURDAY NIGHT LIVE. 11:29 p.m. Saturday, NBC10.

Melissa McCarthy, still apparently waiting for her lost-in-the-mail invitation to Netflix's Gilmore Girls revival, hosts. Kanye West's the musical guest.