I really meant to cover all of your questions last time but I did not, for two reasons, one was my reply was getting too long and the other is I just forgot about some of them while explaining the ones that I did cover.
Not only do I not trim my birds beaks I don't trim their nails either, instead I supply them with a variety of perches both natural and of the pumice variety that is called sweet feet as it has the pumice on two sides and the other two sides are smooth to be easy on the padded part of their feet while the parts with the pumice gently files their nails.
I would cover his cage once it is dark outside so that the light from the TV does not interfere with him sleeping, because it will even with his eyes closed as their skull is so thin that they have light receptors directly on their brains and even blind birds register the light in this manner, The sound from the TV will not bother him after he gets used to it provided that it is kept down to a minimum volume. You can always uncover the cage when you turn the TV off to go to bed yourself. The movement will probably wake him and to keep from startling him when you go to remove the cover speak to him first. He will be fine and go right back to sleep.
You need to reduce the size of the picture so that you can post it, this is not the same as cropping the picture. I might be able to tell you how to do that depending on what photo shop program you have on your computer provided that it is one that I am familiar with. Or you may be able to save the picture to one of the places such as dropbox or flicker and just post a link to the picture.
One last and very important thing that you should always keep in mind. We may indeed be more experienced than you are but we are not experts by a long shot. We will do our best to give you good suggestions and try to be as accurate as we can, but the actual amount of knowledge about parrots is very small as there were no studies done on parrots up until the 1970's so everything we know is still in its infancy. The only experts about parrots that truly exist anywhere are our parrots themselves and we don't listen to them as well as we should. Don't take anyone's word for anything about parrots, use what we say to help you to do your own research.