In the UK, Sky TV NFL will still show the game live, Monday, January 15 at 9:30 PM GMT, with Sky Sports Main Event joining in progress at 10 or 10:30 PM most likely.
Since Sky Sports Main Event is joining i progress since it is simulcasting Derby County vs Burton from Sky Sports Football until 10:30pm. All things being equal an NFL playoff game would be the "main event" over an EFL League One match, but given the timing, I expect Main Event will just drop the drop the post-match coverage and switch at full time (notionally 10 PM) to join PIT-BUF in progress.