Link, comment.

by R. Proffitt Moderator - 4/29/13 9:42 AM

In Reply to: How do I use a headphone with this TV? by N.T.Gray

http://shop.panasonic.com/shop/model/TC-P42C2?t=specs&support#tabs seems to show it's the usual digital audio output so you need the usual optical to analog converter (about 20 bucks) and then that may be all you need if your headphone has the usual volume control.
Bob