is it possible to see the highest rated comments of all time?

i was just reading one of dag's comments (something rubbish about embryos having brains) and realised it had 50-odd upvotes. i then thought to myself, "wouldn't it be nice to see all comments ever made on here, listed according to appreciation". next thing i did was walk to the recent comments room. i noticed a box in the corner that let me see comments with the 'highest rating', so i went for that option. a huge wave of disappointment then washed over me as i realised that the comments hadn't been listed from 'best' to 'worst'.

so is there a way to do it? if not, can it be done? maybe with a cron-job? they're easy right? i've heard joedirt mention them before.