Does anyone know where I can find a list of "The Hidden Episodes" and a complete set of the Hidden epiosdes on VHS?

Thanks,
Don Beck

You can purchase a 12 tape set from the below link, other tapes are sold individually:
http://www.amazon.com/exec/obidos/ASIN/6303622615/happydaysonline3-20

For the out of print videos, I would recommend searching the eBay auction website at http://www.ebay.com