I just so happens a few days ago I was browsing through some stuff on ebay, when I saw a Philips ISA TV tuner listed for sale. They had a link to the drivers. Perhaps this is the same card you have.

Miglia Technology on Monday announced the TVMicro, a new analog TV tuner for Macs that measures about the same size as an iPod shuffle. It costs $99. The TVMicro uses a USB 2.0 interface and works ...