I would assume many NBA fans remember Marv Albert, because he's still active with TNT. Many fewer will remember why he missed an NBA finals 21 years ago for NBC, and most probably didn't know about his indiscretions at the time.
Unlike Keith Jackson and Curt Gowdy, who have been retired for 15 and 35 years, respectively. I probably watched Jackson call a few Big Ten football games for ABC in the late 90s, but I don't remember him specifically. I don't recognize the name Curt Gowdy at all, but it looks like he was put out to pasture by NBC in 1978, and worked regional assignments after that. Based on that, and my date of birth, it's not surprising I wouldn't know his name.