Conversation so far:
When did the donny and marie show start?
The Donny & Marie Show which was a hit on ABC from 1976-1979.
was it popular?
was a hit on ABC from 1976-1979.
But the success came at a cost.
what was the cost?
As a result, the Osmonds as a performing band became a lower priority to Donny and Marie.
What was the show about?
The family built and operated at great expense a first-class television studio in Orem, Utah.
Are there any other interesting aspects about this article?
When the show was cancelled in 1979, the Osmonds were taken by surprise.

Question: why was it cancelled?
Self-contained rewrite: why was the donny and marie show cancelled?