Not such a Happy Day.
Tom Bosley's turn.

'Happy Days' dad Tom Bosley dies at 83

Celebrity website TMZ.com and Access Hollywood are reporting that actor Tom Bosley has died at 83.
Bosley famously starred on the television series "Happy Days."
TMZ reports that family members said Bosley had been battling a staph infection.
"I saw him before I ever got to Hollywood on Broadway, and he was great," former "Happy Days" co-star Henry Winkler told TMZ. "And then I got to act with him for 10 years and he was great. Tom Bosley was our mentor. He was a true artist."
Scott Baio told TMZ: "He was a good man who taught me a lot about the business and business itself. He was a professional guy ... I'm sad."