A non-glorious landmark event in TV sit-com history had a Mastercraft playing a critical role.
In the "Happy Days" episode in which Fonzie "jumps the shark"*, a Mastercraft gets called on for the infamous pull. Happily the Mastercraft logo is blacked out.
Still, as a young adult, I immediately recognized it for what it was and yelled out to the family, "Hey! That's a Mastercraft!!"
Plus he did it Maheraja Jumpers (which I had at the time).