"Crash Lancelot" is the 7-minute pilot short for the Cartoon Network series Mike, Lu & Og. It premiered on November 6, 1998 and was originally part of The What a Cartoon! Show, before Mike, Lu & Og debuted its premiere episode on November 12, 1999.
The Latin Spanish dub of the episode has been found and uploaded to YouTube and also mirrored onto ToonTube. The English version remained lost until it was uploaded to YouTube by stevations on September 27, 2017.
After stevations deleted the video of the pilot, there's a real video of the pilot which is found to YouTube by cartoon boy on November 8, 2017.
Unfortunately, cartoon boy's video of the pilot has been blocked by Turner so the pilot is lost yet again.
It's been re-uploaded on YouTube today by BigFatRobot2002, so grab it and download it before it gets pulled again.