Well, it’s about time. On “How I Met Your Mother,” Marshall (Jason Segal) finally makes it to the Farmhampton Inn, where a wedding guest is intentionally trying to stir up trouble. 8 p.m., CBS.
“How Sherlock Changed the World” is a compelling documentary that takes Arthur Conan Doyle’s famous sleuth from fiction to reality and examines how he had a revolutionary impact on actual criminal investigations. 9 p.m., PBS.
We fully expect Miley Cyrus to be among “The 10 Most Fascinating People of 2013” when Barbara Walters reveals her annual list tonight. Then again, the title says “fascinating,” not “polarizing.” 9:31 p.m., ABC.
If you’re not already sick of hearing holiday tunes on the radio and in department stores, by all means check out “Michael Buble’s 3rd Annual Christmas Special.” This year’s guests include Mary J. Blige and Cookie Monster. 10 p.m., NBC.
It’s time to face the music on “The X Factor” finale as Simon Cowell and the gang crown a Season 3 winner. But do the pop charts beckon? 8 p.m., Fox.
A holiday Ball? Sort of. The “I Love Lucy Christmas Special” pairs a couple of newly colorized episodes, including “Lucy’s Italian Movie” and a seldom-seen yuletide installment from 1956. 8 p.m., CBS.
“Saturday Night Live” alum — and future “Tonight Show” host — Jimmy Fallon returns to host the show’s Christmas episode. The musical guest is fan favorite Justin Timberlake. 11:30 p.m., NBC.