>>/5692/
> .I have to mention that you are a fan of one hit wonders, that´s what I have learned this week.

MFW when I have been listening to: 
https://youtube.com/watch?v=izQB2-Kmiic
https://www.expressnews.com/entertainment/music-stage/article/The-Texas-history-to-one-of-the-biggest-one-hit-13668236.php
https://groovyhistory.com/one-hit-wonders-of-the-1960s
> Zager and Evans are the only band to do this in both the U.S. Billboard Hot 100 and the UK Singles Chart. 

Well you may have a point there...

> I have to appreciate though that you went that deep for a slumber party episode of season 1 when lore and implications didn´t carry that much the tone of the show. If you had told me about the premiere, I would have expected it but Look Before You Sleep is a really odd choice that I wouldn´t have imagined to use for a lore viewpoint. 

Yeah it is, but that line has always stuck with me and it does carry a small but possibly significant implication that I decided I would use. It's an interesting debate in how relevant each season is to each other and I have been trying to come up with a system to judge what counts as "cannon" and what rational theories can be made. I think I have mentioned this before of what my working model is: episode canon, seasonal canon and then show canon. The reason why I say working model is because of all the problems it entails. Say there was something that was implied pretty strongly for the first 7 or 8 seasons only to be contradicted in season 9? If show canon equals the whole does that mean that season 9 trumps everything before? I'd say it is harder than a simple yes or no. I think different seasons had different intents and the problem with making rational theories is that many look at the show with too much of a unitary view of the storyline while it probably be best to break it down into seasons or eras and judge what the writers were planing at the time. Here is my working model in how I view the seasons:

Lore Seasons:
Season 4
Season 7
These seasons were the ones that were paying the closest attention to a unified story. Probably where you could give the most consideration to small details and background elements.
Fan Service Seasons:
Season 5
Season 6
These Seasons had lore but I felt that the stories were less thought out as a unified whole as much as "Let's do X! Fans Love X!" as the mentality. There was still stuff serious introduced (Like magic dynamics) but felt less somewhat organized with a unified whole.
Pre Lore Seasons
Season 1 
Season 2
These Seasons set the foundation but the lore and intentions where only there for some elements not in service of a hard unified continuity (I'd say that be arguable for the series in most places as the continuity is more mid level). 
Can Not Decide.
Season 8 has a more unified story but a lot of the elements didn't seem to be as unified well with the rest of the show. Perhaps at times not as well thought out (them never having a backstory for Cozy). Yet there is arugably build up and stuff around the school that they were intending to build up next season (Halo-Twi). Season 8 still had to partly contend with Season 7's story but it was more of something they had to get out of the way rather than build on it.
Season 9: 
There was a story arch for sure but it wasn't something that was fully unfolding in a all the pieces combined storyline like 4 or 7. Yet one could argue that is better for lore than those. There also was Season 8's storyline which had been contended with, but it wasn't as swept aside so much as background presence with one aborted plotline (Halo Twi and the Tree house). Also there was a mad dash for fanservice.
Season 3:
Hardest to choose. It had buddings of a unified lore for such a short season, yet it also was being done in fan service. One could also make the case that it is either the weakest lore season or a non lore season with lore and fanservice as a more thinly spread butter.

You probably could make cases for a few more being moved around but this is my working m