No other channel can challenge this channel in terms of the wife knowledge it provides. There are various shows which I watch since many years like Man vs Wild. The shows are well planned and directed and has good purpose behind each show. It helps to get a real life exposure towards various things. It is specifically a very good website for kids and school students and they must watch this channel. There are various shows which amazes me as I never knew many things and it makes me more eager to learn new things. Best channel.