Here's a doozy: Only programs from one channel and from one Roamio (out of three) mess up streaming from the TiVo app. Here are the details: 1) The program has to be from a specific channel. (It happens to be the local PBS station.) 2) The program has to be from a specific TiVo. (The other two TiVos stream without problems.) 3) The streaming problem is limited to the app. The PBS programs on the other TiVos stream without incident. All other programs on the affected TiVo also stream without incident. The PBS programs on the affected TiVo do not have problems streaming to the other TiVos, just the app. All three criteria above have to be met for the streaming problem to occur. Whew! Have at it, folks: What do you think?