The latest episode of the CBS sitcom featured several Canadian stars talking about the popular fast food restaurant.
The episode saw the likes of Paul Shaffer, Barenaked Ladies frontman Stephen Page, Rush's Geddy Lee, Alex Trebek and Jason Priestley on a fictional MuchMusic show Under The Tunes discussing the fall of Canadian teen singer Robin Sparkles (Cobie Smulders).
Each celebrity remembered which Tim Hortons they were in and what doughnut they were eating when Sparkles crumbled.
Jason Priestley said that he crammed a 'Timbit' inside a strawberry vanilla and invented 'The Priestley'.
Since the episode aired, Tim Hortons has launched the very same doughnut as a limited edition special.
Priestley later replied saying that it was one of the "proudest" moments of his life.
Canadian viewers of the show have since uploaded their own variations of 'The Priestley'.
Tim Hortons is Canada's biggest fast food restaurant with over 3,000 locations, and is known for its coffee and doughnuts. It was founded by Canadian hockey star Tim Horton in 1964.