The reason, Mark Evanier notes on his blog, we don’t see DVDs of shows like “SCTV” and “WKRP in Cincinnati” is the difficulty and expense of rights clearances for music used during the show, even if it’s just a character humming. More on the difficulty and problem of rights clearances: Oct. 17, 2005 and links therein.
Warner Home Video better hope that a class action attorney with time on his hands doesn’t read the post’s last sentence about a DVD advertised as uncensored that isn’t uncensored; maybe it can be averaged out with the suit over Wal-Mart’s CDs.
Update: A commenter raises an important point: