May 13th...

 Final episodes...

"Knots Landing" - "Just Like Old Times" - May 13, 1993

29 years ago...

pictured above back row (1-r): Joan Van Ark, Ted Shackelford, Nicollette Sheridan, William Devane and Michele Lee.  Front row (1-r): Donna Mills and Kevin Dobson

"Smallville" - "Finale" - May 13, 2011

11 years ago...

pictured above: Tom Welling and Erica Durance

"Desperate Housewives" - "Finishing the Hat" - May 13, 2012

10 years ago...

pictured above (l-r): Nicollette Sheridan, Marcia Cross, Teri Hatcher, Felicity Huffman, Eva Longoria