Hey hd fans i just have one question to asked i have happy days season one like you all do i must asked this question all of the episode from season one that is on the dvd are these episodes that paramount pictures put on the dvd's are from the original master tapes that aired on abc

There are no master tapes. Happy Days was filmed. We can only assume that what is on the DVDs is what originally aired on ABC. I doubt many people (if anyone) has any original airings of the show from the first season as home video recorders weren't widely available in 1974. Therefore, there's nothing we can go by except Paramount's word.

These are the original length airings. They include scenes removed for syndication and probably never seen since 1975.