The 767-300ER "Worldwide" (read: 3-class 767-300) has PTVs in United First, United Business, and United Economy. They offer 9 channels of Video entertainment, as well as Airshow. In United First, there is also a personal video player, on which a passenger can watch video cassettes distributed by the flight attendants.
The 767-200s have PTVs in United First, which offer the possibility of watching distributed video cassettes. However, there are no distributed video channels that play simulataneously, as on the 3-Class 767-300ERs.