This post is a bit late, but it took weeks to find this video. I saw this commercial for HP featuring Santa Claus run quite a bit prior to Dec. 25th and I recognized the voice-over as that of Tim Allen, who stars as The Big Guy in The Santa Clause movie series, whose latest installation was released this holiday season. Is this some sort of cross promotional deal to promote the movie? I wasn't quite sure, but I just saw this spot run again tonight and the voice-over has been switched to someone else. Strange. I guess The Santa Clause people only paid through the end of the year.
UPDATE: IMDB has confirmed my suspicions. They list this HP commercial under Tim Allen's other work.