From today's NY Post:

'SOPRANO' SHOCK

POLLY Bergen, fully recovered from recent artery-replacement surgery, has been in town dubbing an upcoming segment for HBO's "The Sopranos." Stop reading here if you don't want to know what's in store this season. A spy tells us the new episodes, which begin March 7, will reveal that Tony Soprano's father had a bastard son long ago by his mistress - a brassy blonde. Tony loves the older woman and gives her a pile of money. Bergen, who competed against every actress her age for the part, is thrilled. We'll also get to meet Tony's long-lost half-brother.