Yesterday I had issue with my Premiere. The TV screen was going black every 2-3 seconds. I then rebooted the Tivo and it said installing a service updated which took a few hours to install. Since this was during primetime, we were quite upset about missing our shows. I have another Series 3 unit in our bedroom. Am I going to same black screen and service update also? If so, is there a way to force so it does not interrupt the shows we want to watch tonight? Please let me know. Thanks.