Me thinks all the TVs will have A/V input jacks - just not too easy to get to in most cabins.
Per John Heald (who sometimes makes mistakes), the suites do have DVD players?
"John Says:
Hello Bill
How are you? The suites have DVD players but the regular cabins do not. Is there something you would need to watch……….maybe I can arrange it for you. Please let me know
Best wishes
John"
http://johnhealdsblog.com/2009...little-lamb-my-arse/