[JMT1985]

Strongly doubt it would be Channel 4, it doesn't fit into their brand whatsoever and has no similarity to either of the shows you mentioned beyond the fact they are Irish.

Both Father Ted and Derry Girls have crude humour in them, just like Mrs Brown's Boys - this is why I could see Channel 4 taking it originally. 

I think many have a misty eyed view of Father Ted, with the passage of time that happens to every sitcom