Alternative romote control with the ATT Uverse TV

Hello all,  I wanted to ask if an alternative romote control would work with the ATT Uverse TV service since my mother-in-law has trouble distinguishing small buttons on the current remote.  What we need is a very simple remote with On-Off, volume and channel controls, with buttons as big as possible.  If there is such a controller, is that available through AT&T or a 3rd party vendor.  Thanks.