Around the remote: Chuck Barney's picks for Jan. 3-9

DON'T MISS: "Downton Abbey" - It's the beginning of the end for this beloved British soap. As the final season opens, there's anxiety in the air. Lady Mary (Michelle Dockery) faces a blackmail threat, Mrs. Hughes (Phyllis Logan) is nervous about her impending marriage to Carson, and Violet (Maggie Smith) is upset over a possible change at the hospital. On top of it all, the fiscal realities of 1925 may force Downton to - gasp! - downsize. 9 p.m. Sunday, PBS. …