Video Quality - Panasonic VIERA TC-P50S30

I'm running the newest Serviio that I downloaded today to run my movies to the TV. My question is, the movies going to the TV are a pretty poor quality compared to watching them on the PC. I had to run the Panasonic Viera E/S/ST/VT (2011) profile to get the TV to play the videos at all. The Generic profile and the other Panasonic profiles give me a "Cannot read file" error on the TV. Don't get me wrong, I like how this works. Doing much better than PS3 media Server and Mezzmo, but I was wondering how to improve the quality of streaming to the TV.
I have "Produce the best video quality" checked in the Serviio console, and I read through the Transcoding Configurations support page, but I'm completely lost on how to improve quality. Even though I consider myself an advanced PC user, I don't want to go into anything I might mess things up with, because I was happy enough to get the server working right in the first place.
Can someone tell me what I have to do, whether editing a profile setting or changing the codec configurations, if I am able to improve the streaming quality to the TV?
Thanks a lot!

BTW - Serviio is awesome. I am really enjoying it so far.