Best Bets on TV Tonight

"The Happy Elf" (8 p.m., NBC): In this computer-animated Christmas special, a happy-go-lucky elf named Eubie tries his best to make Santa's sleigh team, but his bumbling attempts land him in the doghouse instead. He heads to Bluesville, a gloomy town full of naughty children, to salvage Christmas and get back on Santa's good side. The film is narrated by musician Harry Connick Jr. and features his new holiday songs.
"Knot's Landing Reunion: Together Again" (9 p.m., CBS): They're all here: best friends Karen (Michele Lee) and Valene (Joan Van Ark), the vixenish Abby (Donna Mills), Gary (Ted Shackelford), Mack (Kevin Dobson), Greg (William Devane) and Ciji (Lisa Hartman), the original cul-de-sac dwellers of the drama that ran from 1979-93. The spinoff of "Dallas" featured Ewing brother Gary, his wife, Val, and their neighbors in an upscale California community. At the time, some of the show's scenes were considered racy, particularly those featuring Nicollette Sheridan, now better known as one of the "Desperate Housewives." The program, co-produced by Henry Winkler, includes original cast members reminiscing about the series.