This new Ipod competitor from Microsoft is similar to the smaller Ipods, such as the Nano.  This device packs 8gb of flash memory, as well as many extra features.  With WiFi synchronization, it can exchange photos and music with other Zunes.  Also, these machines are typically said to be more durable than their Apple counterparts, with sturdier metal construction and scratch-resistant screens.  However, it seems that TV shows are not available at this time from the Zune Marketplace.