I think I lost color lock

[lnx64]

Is this what you would call, a loss of color lock? It happened while watching my DVR. But here's the kicker, my DVD, VCR, and SEGA Genesis are not having this problem.

http://img.photobucket.com/albums/v3.../colorlock.jpg

Is this a sign of a weak tube or crystal, or a sign of just a DVR going bad?

http://img.photobucket.com/albums/v3...gon/colors.jpg
(from my DVD player running video essentials).

Thing is, right when I pulled out a RCA XL100 (90's model) it started working so I was unable to test the DVR.