rb99:
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Lol. 70s and 80s sitcoms will get zero benefit from Blu Ray.
When the source material is 480i or 576i who cares?
True. Though some stuff, maybe not sitcoms, may have been filmed on actual film, e.g. I assume the bluray version of Columbo would have looked / did look quite good.
Fewer discs for however many episodes is the biggest advantage. Able to use better menus for the content so even if the video is still pretty lousy they can at least have text that doesn't barely look any better than teletext did for the menus.