I do sometimes as hearing is not great but sometimes the music is louder than the talking on some shows and can name that tune but not hear a word they say.
My TV is 40+ years old and I don't believe I can get closed captioning even if I wanted to. I honestly don't need it and I do understand the overly-loud music over dialogue issue. It also irritates me when the character is speaking a foreign language and the translation at the bottom is either too small to read or they use white letters over a white or yellow background. DUH!