In one embodiment, the digital video recorder includes {TAIL ~ a feature detector} configured to derive a set of {HEAD ~ features} from content within a television commercial 
In one embodiment , the digital video recorder includes { TAIL ~ a feature detector } configured to derive a set of { HEAD ~ features } from content within a television commercial
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH