WPIX Yule Log, 1983
The original WPIX-New York yule log, in lovely early-80s style:
Just a Nice Roaring Fire
An hour of nice crackling cozy goodness.
2-Hour Yule Log, 720p
Just what it says on the tin.
5-Hour Yule Log, 1080p
You probably want to turn off annotations (click "gear" icon, click "OFF") to get rid of the silly popup. But, wow, five hours!
Yule Log on Netflix
If you have Netflix, you've got yule, baby.
(Most of these logs via MetaFilter, which has yet more links to previous coverage.)