With 2 shows rebooted Charmed and Roswell how about a match featuring the originals cast vs the new 1s cast.
Charmed-Alyssa Milano, Shannen Doherty, Rose McGowan and Holly Marie Combs vs Sarah Jeffery ,Melonie Diaz and Madeleine Mantock
Roswell-Shiri Appleby, Katherine Heigl and Majandra Delfino vs Jeanine Mason, Lily Cowles and Heather Hemmens.