Someone who cruises regularly may want to confirm it, but I don't recall seeing a TV in the stateroom. (Of course, that may vary from line to line.) Seems to me that some folks might find in-room video entertainment (especially with some content genres) a worthwhile alternative to group viewing in a theater setting. After all, "something for everyone" seems to be the main gimmick being pitched by major cruise operators lately.
Always tell the truth. Then you'll never have to remember what you said the last time.