I don't think Steve talks about EVERY sale in the past. There were about 200 or more sales in the last years. So I think he's talking about the last sales, maybe the sales this year.
Here are my one and only sources (just tgps and tubes, no posting or whatever):
http://www.mymaturetube.com
http://www.hornysextube.com
http://www.mystockingtube.com
http://www.hornystockings.com
http://www.findred.net
http://www.stockinghardcore.com
http://www.stocking-maniacs.com
http://www.milf-maniac.com
http://www.maturemaniac.com
and some very small and very old sites
(
www.wetdreambabes.com,
www.sinfulseduction.com, ...)