Ever since AT&T did the upgrade to our system to allow viewing from all receivers instead of just from the receiver attached to dvr, we have experienced sync problems with playbacks. Recorded programs that are played back on every other receiver BUT the dvr itself start skipping after several minutes. Using rewind, fast forward, pause and play, we can get past each "skip point", but the problem recurs within a few seconds. So far, AT&T has replaced the dvr, replaced the wall connect from the dvr and restrung the external drop to the house. For the first hour or so after each of these service calls, the dvr playback is fine, but eventually returns. If I could figure out which line is probably at fault, I'd be glad to tell AT&T, so we can finally make this STOP!