DVD Regions - Any Workaround?

Hi. I was wondering whether it would be possible to tweak my DVD player so that it can play DVDs from Europe. I live in California and I own a Pioneer Elite DV09 DVD player. I find that there are a number of British titles (mainly British TV shows) that I'd like to have, but they aren't available in the US. I can source the titles from Amazon.co.uk, but I need to be able to play them. I'd value any advice on any fix anyone is aware of to get around the region restriction. Thanks!!
John.