Came across this and wondrered if anyone had tried this with hummy recordings? it offers to ways to detect the adverts so wondered which was best.
Freefall
http://www.howtogeek.com/136470/strip-the-ads-from-your-tv-recordings-with-mcebuddy-2/
Freefall
http://www.howtogeek.com/136470/strip-the-ads-from-your-tv-recordings-with-mcebuddy-2/