I have the previous gen dvrs to X1 and whenever I navigate fwd or rev, there are typically 3 minute to 15 minute skips when I just want to go 30 sec in either direction. Extremely annoying on CNN and CNBC. Their commercials are not affected like this, it navigates perfectly. Sometimes there's a circle with line thru it such that I can't pause either. Other channels, live and recorded are fine. Is this some control <Edited> by comcast?