These Days Are Ours

Let it never again be said that there is no culture in Milwaukee, because now we have this totally sweet statue of Christopher Walken.

As a bonus, that is Potsie, and he's singing our national anthem. Good thing you can't hear pictures, am I right?

Word Problem:

Happy Days, though set in Milwaukee in the 1950's, was produced in Los Angeles, CA, and appeared on television between 1974 and 1984. A statue of the show's breakout character, the Fonz, was erected in downtown Milwaukee in 2008. Given the above, estimate both the date of placement (within six months) and the physical location (within one square mile) of the following statues:

A -- Lenny & Squiggy, of Laverne & Shirley, 1976-1983

B -- Bear, of BJ& The Bear, 1979-1981

C -- Whatever character was played by Ashton Kutcher, of That 70's Show, 1998-2006

Challenge:

I will refund the cost of the spray paint to whomever is the first person to put the words "SIT ON IT" on that particular statue. (Any legal fees or municipal fines incurred are your own.)