I was catching a re-run of Law & Order season 8 last night. Richard Belzer a.k.a. Munch, then still with Baltimore police, guest-starred, and the New York detectives visited Baltimore as well, so I guessed the episode might be a crossover with Homicide: Life On The Street. After extensive searching on the net, I finally found an episode guide that confirms it. (As an aside, it is amazing that it was so difficult to find a working ep guide for a show as popular and long-lived as L&O. But I digress). Since Homicide isn't being shown right now, I won't get to find out how the story ends (And the ep guide's summary is only two lines so it doesn't tell me anything there either.) Anyway, this got me thinking, if/when L&O S8 is released, there's going to be a "hole" in the story, in that the resolution to this story is on a H:LotS set and won't be on L&O. The same problem arises with Angel and Buffy crossovers, which is another annoyance since I watch Angel but not Buffy. Or for that matter any number of David E. Kelley's shows, IIRC Boston Public and Practice, Ally McBeal and Practice had crossvers. So, IMHO, if the producers want to do a crossover, it's only right that the crossover episode in the other series is also included, for completeness. So far AFAIK this hasn't been done, producers no doubt assuming die-hard fans buy everything under the sun to complete their collections. As for other "legal" issues that might preclude such inclusions, surely if they were able to produce a crossover tie-up in the first place, future paperwork can cover such scenarios? E.g. I'll let you include my show's ep if you let me include yours.