He needs to get what they call a "Short Term Licence"
http://www.tvlicensing.co.uk/information/agedover74s.jsp" I'm 74. How do I apply for a short term TV Licence?
Please call 0844 800 6790 with your current TV Licence number and National Insurance number (if you have these) to hand. You can then buy a short term TV Licence over the phone by debit or credit card. Or, if you prefer, we will send you a personalised letter showing you how much you need to pay and other ways you can pay.
If you are not the current licence holder for your address and you share your home with someone younger, you may still apply for a short term TV Licence. You simply need to transfer the licence into your name, which you can do by calling us on 0844 800 6790. "
Either way he has to call 0844 number unless their is a geo alternative.