1. View high quality videos
Youtube gives you the option to switch to high quality videos for some of the videos, however you can check if a video is available in high quality format by appending ‘&fmt=18′(stereo, 480 x 270 resolution) or ‘&fmt=22′(stereo, 1280 x 720 resolution) for even higher quality.
2. Embed Higher Quality Videos
While the above trick works for playback, if however you want to embed hig quality videos you need to append “&ap=%2526fmt%3D18″ and “&ap=%2526fmt%3D22″ to the embed url.
3. Cut the chase and link to the interesting part
Linking to a video where the real action starts at