I've been watching a few episodes of this show and it's been entertaining. This guy who's been in the high-end collector car business for years buys and sells all kinds of fun stuff. On DirecTV, the show is on channel 281. On November 25th there's an episode on Porsches...
http://dhd.discovery.com/tv-schedules/series.html?paid=66.14723.122927.34612.4&start=30