Hi, don’t know if this will be any help or if you have seen this site already, but it gives a timeline of all the star wars releases over the years all the way up to the new dvd set. Kind of interesting, let me know what you think.

Mod Edit: working links can be found below:-

SW: https://web.archive.org/web/20060206031246/http://www.davisdvd.com/misc/ep4.htm

ESB: https://web.archive.org/web/20050924185548/http://www.davisdvd.com/misc/ep5.htm

ROTJ: https://web.archive.org/web/20050924185726/http://www.davisdvd.com/misc/ep6.htm

Misc: https://web.archive.org/web/20060206024552/http://www.davisdvd.com/misc/ep_misc.htm