when you commercial skip does it play audio with scanning 30 seconds or so at a time? ie high speed audio playback??
If so, it is very likely that it is also played back in pcm 2.0, causing the Denon to sense a change in input signal.
If you confirm this, the fix is likely posted above in post #6130
I havent used tivo since an HR-250 from directv, but the Tivo gui sounds are likley the culprit in this case.
Another remedy could be switching off sound effects on tivo for navigation, This works in XBMC as well on linux , windows OS installations.
HT1: UN78JS9500, AVR: AVRX-7200WA, AMP: UPA-7, SPKRS: L/R: Veritas 2.3I C: 2.0CI SUR: V2.0R,, SUB: SVS SB13Ultra x2 ATMOS: 4X RC-6C, NUC i5/KODI, ChromeBox/KODI, ShieldTV
HT2: LC80LE844U, AVR: AVR4311CI, SPKRS: L/C/R: Veritas 2.2C, SUR: RC-RCRx2, SUB: 10.3x2
STORAGE: DS1812, DX513 x 2 - 4TBx18 Hybrid Raid, (It Just Works!!) R/C: HarmonyOneX2, Harmony880x1