He doesn't specify, however he might have the RC2000 Mark 1 (which really isn't anywhere near as good as the Mark 2). However the Sony is more or less (depending on your viewpoint) similar or equal to the Sony... The AV2000 has more enough memory to handle my system (which has quite a few buttons learned) but of course your mileage may vary depending on how "long" the IR codes on your equipment are. Always try to use the built-in codes first if possible, and fill in holes.