United Kingdom, May 7 -- Jason Ritter found it "weird" when his late father's voice suddenly appeared on television.

The 45-year-old actor is the son of John Ritter - who died suddenly at the age of 54 as a result of a misdiagnosed thoracic aortic dissection - and Nancy Morgan, and recalled fixing a "fuzzy" television set when his dad's guest appearance in an episode of 'King of the Hill' was coincidentally on the air.

He told People: "There have been a couple of times.

"There was a time where I was in a trailer and I was trying to get this TV to work, and it was all kind of fuzzy, and the only channel that worked was playing a 'King of the Hill' episode, and it was my dad's voice, and I hadn't known that he had done that. And all of a...