My XL4 is about two weeks old now, and I have yet to receive one recorded suggestion. I'm seeing the same behavior as on my old S3s--the suggestions list never populates with any shows despite having suggestions turned on and page and pages of thumbs ratings. My Tivo has the current 18.104.22.168 software. Find TV, Movies & Videos --> Browse TV --> TV --> Suggestions --> "Wait a few hours..." In the S3, this was a never-resolved issue related to tuning adapters. Disconnecting the TA would allow the list to populate, reconnecting would allow the populated suggestions to record. I assumed they had fixed this issue with the S4s. I called Tivo support and the agent had never heard of this issue in the S3 and suggested an RMA for the XL4. I've done the only troubleshooting step on tivo.com--turn off suggestions, reboot, turn on suggestions, reboot again. I haven't seen any other posts detailing problems with the various S4 models and suggestions, so am I unique? What else can I try to enable suggestions?