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<blockquote data-quote="CyberSimian" data-source="post: 1299827" data-attributes="member: 141969">Sadly, there is a functional quirk in the way that the idle and timeshift EPG grabbers work.Using the idle grabber, TV Server will tune in turn to each selected channel, and grab the entire EPG from that channel (assuming that the grab duration is long enough). This is why it is a bad idea to select more than one channel when using the idle grabber with MUXes that contain the EPG for all channels in all MUXes. TV Server will repeatedly grab the same EPG, when it actually needs to grab the EPG only once.The circumstance when you would need to select more than one channel when using the idle grabber is for those countries where each MUX contains the EPG only for its own channels, and does not contain the EPG for channels in other MUXes (I think that France is like this). In this case you would select one channel in each MUX. I also think that this is the only case where the setting Use all available tuners provides any benefit.Using the timeshift grabber, TV Server will grab the EPG only when tuned to a channel that has been selected for grabbing. If you have selected only one channel (because you are using the idle grabber), timeshift grabbing will occur only when you watch or record that specific channel, and not when you watch or record other channels. To get timeshift grabbing to work regardless of which channel you are watching or recording, you would need to select all channels for grabbing, which is in direct contradiction to the optimal choice for idle grabbing.EPG grabbing could be improved, but it is a complex area that would take a lot of work to understand and get right (so unlikely to change, I think).-- from CyberSimian in the UK</blockquote>

[QUOTE="CyberSimian, post: 1299827, member: 141969"] Sadly, there is a functional quirk in the way that the idle and timeshift EPG grabbers work. Using the idle grabber, TV Server will tune [i]in turn[/i] to each selected channel, and grab the entire EPG from that channel (assuming that the grab duration is long enough). This is why it is a bad idea to select more than one channel when using the idle grabber with MUXes that contain the EPG for all channels in all MUXes. TV Server will repeatedly grab the same EPG, when it actually needs to grab the EPG only once. The circumstance when you would need to select more than one channel when using the idle grabber is for those countries where each MUX contains the EPG only for its own channels, and does not contain the EPG for channels in other MUXes (I think that France is like this). In this case you would select one channel in each MUX. I also think that this is the only case where the setting [b]Use all available tuners[/b] provides any benefit. Using the timeshift grabber, TV Server will grab the EPG only when tuned to a channel that has been selected for grabbing. If you have selected only one channel (because you are using the idle grabber), timeshift grabbing will occur only when you watch or record that specific channel, and not when you watch or record other channels. To get timeshift grabbing to work regardless of which channel you are watching or recording, you would need to select [i]all[/i] channels for grabbing, which is in direct contradiction to the optimal choice for idle grabbing. EPG grabbing could be improved, but it is a complex area that would take a lot of work to understand and get right (so unlikely to change, I think). -- from CyberSimian in the UK [/QUOTE]

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