Template:Episode name split

I have split the episode name template so we would now experience less transclusion size of this template. ^^ (As an example, let n be the transcluded size of this template. For each episode we would do three checks (previous, current and next) to see if part A is also part B. That's 3*2*n. Then display the value. That's 3n. And for the navbox at the bottom, a check is made for each episode. Let's say for one season, that's already about 52*3n, excluding our subs'ted navboxes method. The new implementation is separated per season, so assuming we have 5 seasons, n will now become just n/5, excluding the episode season transclude size.)