Lawson58, you touched a chord with your description of your husband turning the channel when you were engrossed in a movie. Yes, they lose all consideration for others and for the needs of others as the disease progresses and it hurts.
My husband's only pleasure was, and still is, watching TV. So I pretty much just let him watch what he wanted from the time he got up until he went to bed. And the TV volume was way, way up because he was hard of hearing and would not wear his hearing aids! The main problem was that he preferred the Military Channel. Twelve or more hours a day of the recounting of every war, every type of tank, machine gun, pistol, airplane, etc., ever made. I could stomach that but the Nazi stuff, with all that entailed, was too much for me. I had asked him repeatedly to turn the channel when that stuff was on because it so distressed me. Even wearing earplugs I could still hear it. My wishes didn't matter to him one whit.
Finally I had had enough. One evening as I was making supper Hitler was again on. I blew up inside but stayed calm when I gave my ultimatum. Either he turned the channel while I was preparing and we were eating supper or he could get his own supper. Then I left the room. It took him a while thinking about it but I finally heard another show on the telly. Back I came to finish making supper. Didn't say a word about it and neither did he but that was the end of the Military Channel in the evenings. A few months ago he forgot about the Military Channel and decided Andy Griffith, Gunsmoke and Bonanza were what he liked best, all day long on TVLand until supper time. Thank you, Lord!
The sad part of it is, we got into the habit of watching the news, Wheel of Fortune and Jeopardy every evening together. It made him so happy when he got an answer right and we both enjoyed the time together watching them. Our son would call him ahead of time for the final Jeopardy question (it came on earlier in NY) and tell him what the answer was. Sometimes Bob would forget but a lot of times he would remember and delighted in thinking I thought he was brilliant. I knew what was going on but did not let him know, of course. Now I can't watch any of those because it is too painful for me to do so alone. It just isn't the same without him.