Usually a hit sitcom can spawn other networks to have their own version of a hit show. A couple of examples is Friends and The Cosby Show that spawned cheap ripoffs on other networks to have a similar show. Did Mary Tyler Moore Show have any of those?

'Funny Face'/ 'The Sandy Duncan Show'

'Tabitha': she was single and worked at a television station

'Funny Face'/ 'The Sandy Duncan Show'

'Tabitha': she was single and worked at a television station

Interesting indeed, thank you!