We recently upgraded from a TiVo HD to the Roamio Plus, and generally things have worked well. However, "So You Think You Can Dance" on FOX (Comcast) records, but when we try to fast forward over a commercial, TiVo skips about 20 minutes into the show. When we rewind, it jumps back over the 20 minute section. There's no way to fast forward or rewind at any speed within that 20 minute chunk. It's like that portion of the show is off limits. This wouldn't be a big deal if it only happened once. However, this happens for another chunk of time in the same broadcast. Figuring it was a bad recording, we've watched many other shows since that broadcast with no issues whatsoever. But, when this week's episode of "So You Think You Can Dance" was recorded, we have the exact same issue. It's very frustrating and basically makes portions of the show unwatchable...that is, unless we never touch the remote. We've never had this issue with this show, and we've watched almost every episode since it began airing years ago (all recorded on various TiVos). Has anyone else experienced this issue?