I've been running two TiVos (Series 1 and Series 2) for a while with both being controlled with a Glo-Remote via the slide switch so I'm familiar with programming them for separate remote codes. My Series 3 HD arrived today and am I correct in assuming that I'll have to use a second remote programmed to a different code from the other two? I.E. the Series 1 is set for Remote code 1 and the Series 2 is set for Remote code 2. So I'd have to program the Series 3 and a second remote for remote code 3?