Just bring your own, any universal one plug jack should fit. I see people with various types and have used old ones I've gotten from other airlines. They do sell some cheap $2.00 sets at the gate before you get on the plane, but get them before you board 'cause I've not seen the FAs selling them on the plane.
They have free Direct TV and music, as well as pay movies. Movies are free on international flights. Even watching TV re-runs can pass the time!