I have lost the local NBC (11) and CBS (13) affiliates due to potentially a frequency change for each despite previously receiving them. I added a pre-amplifier to attempt better reception as I was getting a “weak signal” indication on my Tablo quad running firmware 2.2.42. Removed the pre-amp from the connection and did a rescan whereby the channels no longer are detected despite previously being in the channel lineup. I saw in previous threads that there have been previous frequency changes for both stations which might have been fixed with a firmware update although 2.2.42 indicates that it is the latest. Are others experiencing the same issue and if so do folks know of a resolution? Thanks!