My network consists of an Airport Extreme router, a lot of switches hardwired and 2 Airport Expresses which function as range extenders. When in areas where the Airport Expresses are in play extending the wireless network there is severe video stutter using the Tivo Stream. If I deactivate the AEs then the stream works fine. Work around is to download the show to the iOs device and then start watching after a few minutes, this avoids the stutters.
Just wanted to pass this along to others considering the Tivo Stream who might have similar network setups.