WASHINGTON (AP) — After years of making money providing Internet service, cable TV companies are now tapping the power of the Internet to improve clunky program guides that are a relic of the 1990s.

Over the past year or so, Comcast Corp., Cablevision Systems Corp. and other cable providers have introduced new program guides on television set-top boxes. These improved guides act more like websites, making it easier to find movies, live TV shows and on-demand video.