The MX-500 is a pre-programmed and learning remote. With a RM-1271 remote to learn from, you can teach the MX-500 anything the Sony PJ needs. I have my MX-500 set up with most of the basic needs for my 1272. For convergence, I use the factory remote.
$189 is a bit high, they can be found for around $120 with a little searching.
A forum community dedicated to home theater owners and enthusiasts. Come join the discussion about home audio/video, TVs, projectors, screens, receivers, speakers, projects, DIY’s, product reviews, accessories, classifieds, and more!