WEST HOLLYWOOD, Calif. (AP) — Mark Landon, an actor and eldest son of "Little House On The Prairie" star Michael Landon, was found dead Monday at his home. He was 60.

Jingle Bells ring when TV Land rolls out a collection of classic Christmas episodes during TV Land's 8th Annual Merry-thon. The 24-hour celebration airs Monday, December 24 through Tuesday, December 25 from 5:00pm - 5:00pm (ET/PT).