saving renderer or codecs for certain channels

[floorguy]

i noticed that some codecs work better than others when on different channels for ex: nvidia pure video
nvidia pure audio
overlay video renderer
sb live 24 bit
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this setting works great on the hd channels,but not on the sd channels. would be nice when switching between channels we could set it to rember our preferred settings, per channel or sd/hd
sorry if this has already been requested for.
thankyou jimmie