I'm watching The Big Bang Theory from my Library and when I go to the show I have to scroll past all of the episodes I've already watched to get to the first unwatched episode. Is there an easier way to jump to the first Unwatched?
In the global settings under Library, you can set the sort order.
Or you can do it per show.
the sort order is only the best available option i'm aware of. It however, does not jump to first unwatched. It forces you to scroll through 'later' episodes first.
also especially on reruns there is no telling where in the seasons the new recording is.
Enable up next section if it’s not already and select the show from that section and it will take you straight to the next unwatched episode.
Ha! I apparently had these set globally but didn't have the up next, on now, and on later included. the settings in channels beta app on gtv let you toggle to your hearts content, but changes nothing due to the global override. (i had been assuming it was an apple thing)
I'm going to have to remap remote buttons now. 
still be nice to have the option to jump to unwatched in the 'explore show' screen.
I'm not seeing any option for sort order under Library....? Did you mean on the client not on the server?

Airing Order