I’m off on vacation this week, so rather than day-by-day picks (don’t forget to watch “Terriers” and “Fringe” blah blah blah), here are the four highlights of the week:

“Great Migrations” (8 p.m Sunday, NatGeo). This new seven-part documentary series features some pretty spectacular cinematography as it chronicles epic animal migrations around the globe, from zebras in Botswana to flying foxes in Australia to great white sharks in the Pacific. Should be amazing in HD.

“The Simpsons: Treehouse of Horror XXI” (8 p.m. Sunday, Fox). The annual Halloween episode is traditionally the weakest episode of the season, but it’s still a tradition. So keep your expectations low.

“Conan” (11 p.m. Monday-Thursday, TBS). At long last, Conan O’Brien’s NBC-mandated banishment from TV is over. He and sidekick Andy Richter will debut their new show on a new network. It’ll be nice to have Conan’s skewed brand of humor back, and it’ll be interesting to see what he’ll be able to get away with on basic cable. Monday night’s guests include Seth Rogen and musical guest Jack White.

“Burn Notice” (10 p.m. Thursday, USA). Half-season premiere. Last time we saw Michael Weston, he was laying in the street, bleeding from a bullet wound after frenemy Jesse shot him, as a mysterious figure absconded with the top-secret briefcase Michael had just acquired that would clear Jesse’s name. Tonight, Michael and Jesse are on the hunt for that briefcase. In the B storyline, Michael is still trying to help out a skeezy, revenge-minded defense lawyer whose daughter has been kidnapped by a local gang.