Wiseguy - Season 2 Episode 14
And it Comes Out Here

Despite Paul Becksteads misgivings, Vinnie uses Dianas record to start a bidding war in the hopes of selling Dead Dog to a bigger label. When Vinnie signs elusive James Eliot, Newquay offers to buy Dead Dog without Vinnie, Bobby or Diana. Diana balks at Newquays offer, revealing they used to be lovers. Contrary to Franks wishes, Vinnie sells Dead Dog to Isaac. Frank warns Vinnie that Newquay has been digging into Vinnies past. (source: http://www.plasticcow.com/wiseguy)