VIDEO: Tarzana Whole Foods Opens Wine Bar as Supermarket War Heats Up

The major supermarket chains in the Valley are making big changes in operations as competition for customers is heating up.

The new Whole Foods Market in Tarzana, the largest supermarket in the Valley, is now operating a wine bar; it's the first supermarket wine bar opened in the San Fernando Valley.

This video by Doug Kriegel and Scott Goldrich takes a look at the supermarket competition.