Pop Corner

Do not attempt to adjust the picture: That green tint on your television is from the Sundance Channel's new programming. The network, founded by actor and longtime environmental advocate Robert Redford, will debut a weekly three-hour block of ecofriendly TV in April. Plans for "The Green," the first segment of its kind in prime time, include a series profiling leading activists and innovators, feature-length documentaries, lifestyle shows, and news specials.