The most horrifying part is configuring clear QAM cable channels
Use the Web interface to do this; it's a breeze. (Comcast recently moved a bunch of digital channels around and I had to rescan.) Check a box next to any channel that didn't get an ID and delete them all in one fell swoop.
"Kill the Wabbit, Kill the Wabbit, Kill the Wabbit!" -- Looney Tunes, "What's Opera Doc?" (1957, Chuck Jones)