Complex sentence: AMC had broadened its film content to feature colorized and more recent films by 2002 and abandoned its commercial-free format, leaving TCM as the only movie-oriented cable channel to devote its programming entirely to classic films without commercial interruption.
Split into simpler sentences: AMC had broadened its film content to feature colorized and more recent films by 2002. In the early 90's AMC abandoned its commercial-free format, leaving TCM as the only movie-oriented cable channel to devote its programming entirely to classic films without commercial interruption.