Why create a character with the same first name?
I've never understood this phenomenon. There's Fran Fine/Drescher, Andy Taylor/Griffith, Steve Harvey/Hightower, Reba McIntire/whatever her character's last name was on "Reba" (and I think even on the canceled "Malibu Country," her character also was named Reba), Ellen Degeneres/Morgan, and probably a bunch more I'm forgetting.
Why do actors (or producers -- whoever comes up with the idea) do this? If the character is supposed to be an extension of their real-life personality, why is it so important they still have the same first name (but not same last name)? It's just odd and kind of confusing, to me.
Has anyone ever heard someone affiliated with any of these shows explain why they do that?