One of my faves was Doris Roberts (Ray's Mom on "Everybody Loves Raymond") although she never really seemed to have ever spanked Ray or Robert growing up. She just seemed to have the vibe for it and certainly I imagined her putting her daughter-in-law (Patricia Heaton, now of "The Middle") over her lap for a little attitude adjustment, maybe along with Raymond (a whiny momma's boy if there ever was one). Patricia Heaton herself could be a spanking Mom on her current show, but she's not. Small but mighty, I could see her take Axl down a peg or two, especially when he mistreats his sister and brother.
On another note, there's a Penerotic pic of Claire (Modern Family) spanking both her daughters on his site.
http://penerotic.blogspot.com/2012/10/modern-family-spanking.html