The batteries in my Sony remote are at least 3 years old and were installed at least a year ago. I know they're old because they're Toshiba alkalines that I bought at BJ's and I haven't had a BJ's membership for over 3 years.

I have 2 Sony Tivo remotes. I actually bought a replacement incase the original one broke.
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-Rob Riccardelli
80GB 16MB MK2 090000736