I am finding it harder to get absorbed in TV dramas too. It is as if my memory has been affected in some way. My basic intellect is still sharp, but recalling some things can be a problem. Maybe this is just age? I am desperate to get my "old self" back, but know it could be a long road. Knowing now how bad I was I guess I was pretty lucky and I could have ended up as a terrible mess mentally and physically.
Richard, an old friend, told my wife to get me into hospital fast in Sept 2013. Looking back, this probably saved my life.
See http://www.healthline.com/human-body-maps/cerebellum .