Also, the 555 can store up to 15 devices the 525 can only (!) store 12 lol. That probably wouldn't make much difference to most people.

The Harmony 525 is on sale at Amazon.co.uk for £35, currently:

http://www.amazon.co.uk/Logitech-Har.../dp/B000BFGZS0

I can not find any mention of the Classic IRC83136 in this thread. A few months ago when I internet searched for a replacement remote this reigned for £12 - £13.

A few sites did not mention the name/serial-number but the pics were the same