Stepping up its competition with traditional television, the YouTube website announced Wednesday that beginning next week, many video clips will be available in full 1080p high-definition, the top quality for home-theater systems. "As resolution of consumer cameras increases, we want to make sure YouTube is the best home on the web to showcase your content," the company said in a statement. Previously, its HD-branded clips were available in second-tier 720p, the maximum resolution for most smaller-screen HDTV sets. The website further announced that many clips already available in 720p are being re-encoded to 1080p HD.