In an earlier item on S. Epatha Merkerson leaving 'Law & Order' I mentioned how it takes the departure of a long term cast member to draw the attention of fans and viewers. Well, the other thing that snaps those same folks to attention is the crossover of a character from one 'Law & Order' show to another. That's because these people have rarely made appearances in other members of the franchise in the 250 years its been on television.

In this instance, Sam Waterston's Jack McCoy will be appearing on an episode of 'Law & Order: SVU.' Now, while Waterston has appeared on the show twice before in his office, this will be the very first time that District Attorney McCoy will show up in the SVU squad room. It will also be the first time that Waterston works with actor Christopher Meloni. It'll be interesting to see how these two characters react to each other.

This "very special episode" of 'Law & Order: SVU' premieres on April 28th with special guest star Sharon Stone.