Virtual Channel Limit Option

Hello,
Can anyone tell me the proper way to use the limit option in a virtual channel ??.

I have a pretty large library, with some shows having upwards of 85 episodes and it feels like shows with less episodes are in the guide rarely. I usually keep the option to none, and sometimes it feels like there is a good balance, other times I feel some shows never appear in he guide.

I have created multiple channels with certain shows as content to try and see certain shows more often. Perhaps I'm using the limit option of none through 50 incorrectly.

Thoughts ??