Subtitles are a great way to keep me engaged with TV content. When there’s none, my eyes are usually on TV station logos and other annoying distractions which make it hard to concentrate on what I’m actually watching (so I usually get bored and give up) - at the same time they allow me to keep the volume at an acceptable level. The only problem with subtitles is that some TV stations don’t do them properly. They should take some clues from the BBC or Danish TV, who have perfected subtitling, in regarding to font choice, size of black bars and timing the subs to the dialogue.