I have RCN in Chicago and they've offered all four Starz "HD" channels for months but only the original Starz had HD programming until now. The others were just 4:3 stretched à la TBS HD.

In the last couple of weeks the three others now offer HD programming. Just yesterday I saw Ratatouille in OAR on StarzKids. StarzEdge and StarzComedy should have excellent programming as well.

DirecTV has been showing the 1080i HD version of all of the STARZ channels for months.