ABC, 8:00 p.m. ET
                    
                        From 1965, and still the champion of holiday TV specials, this superb Peanuts special is back for another annual visit. O come, all ye faithful, and gather around the television set for one of the medium’s few true miracles. 
                    
                 
                    
                 
            
                 
            
                
                    
                    ABC, 9:00 p.m. ET
                    
                        Cam (Eric Stonestreet) is determined to save a tree, at a local park, that’s targeted for removal. To do so, he pulls out all the stops – and some of his old theatrical tricks and treats. 
                    
                 
                    
                 
            
                 
            
                
                    
                    BBC America, 9:00 p.m. ET
                    
                        SEASON PREMIERE: Dominic West, as smug British TV news anchor Hector Madden, is the best reason to watch this British period drama, a mash-up of Mad Men and The Newsroom – but there are plenty of other good reasons, too, including Romola Garai as his show’s producer, a lot of intrigue about what’s happening in the news in 1957 London, and boisterous visits to a local nightclub, where the production numbers look like outtakes from the fantasy sequences of The Singing Detective. 
                    
                 
                    
                 
            
                 
            
                
                    
                    FX, 10:00 p.m. ET
                    
                        If you expected things to lighten up for Sister Mary Eunice (Lily Rabe) this week, think again. In this week’s new episode, she fears that Briarwood has been visited by a “dark visitor.” And she’s not wrong. 
                    
                 
                    
                 
            
                 
            
                
                    
                    ABC, 10:01 p.m. ET
                    
                        I’m betting this will prove to be worth the wait. For the first time this season, we see – and hear – a duet between Rayna (Connie Britton) and Juliette (Hayden Panettiere). That’s on stage, at the famed Ryman Auditorium – but off stage, before and after, is where to find the real drama.