HBO's On Demand is now offering a 3 minute recap of many of the big "hits" from all the prior seasons. (They've included some that have died "naturally" like Livia and Bobby Bacala's dad).
Surprisingly they've included the Russian from the pine barrens, so, at least according to HBO, he's officially dead. (Not surprisingly Adrianna was included).
They're also running a 3 minute recap of all prior seasons (totalling 18 minutes) plus all shows from Season 6 (Part 1) until April 8th. They're charging $4.95/month (and you should be able to order it and cancel it anytime you want) so, if you view all their stuff for "The Sopranos" and want to cancel immediately after that you'll be billed only for those days that you've actually subscribed (i.e. if you keep it for one week only you should be billed only for that one week, or about $1.15).
Thats how it works here with Cablevision anyway, so you may wanna check with your own cable company.