Christmas Day TV Marathons: What's On?

The presents are open. The snow is falling. The eggnog has made you nice and drowsy.

So, what is a reveler to do on Christmas but sit back and watch some TV?!? Here are the marathons the small screen is offering on December 25 this year...

BBC America: Doctor Who, 8 a.m. to  6 a.m. the next day, including "Farewell to Matt Smith" at 8 p.m. and "The Time of the Doctor" at 9 p.m.

Chiller: Pushing Daisies, 8 a.m. to 6 a.m. the next day.

Cloo: White Collar, 6 a.m. to 6 a.m. the next day.

IFC: National Lampoon movie marathon, 9:30 a.m. to 8 p.m. 

TLC: Undercover Boss, noon to 3 a.m. the next day.

TBS: 24 hours of A Christmas Story, airing until 8 p.m.

A&E: Duck Dynasty, 3:30 p.m. to 4 a.m. the next day.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.