I'll be taking my trusty Roberts radio that I bought about years ago. You could get one for around £20 plus a few quid for the 4 D batteries needed. Loud enough to hear clearly above any radios nearby, and will last you until the whole shebang inevitably goes digital. I'm really glad that the radio commentary is continuing, as I'm a bit of a technophobe and wasn't going to buy a smartphone just to get the TT-live app! (I know, I'm a miserable git!)