This show has always been in HD not stretch-o-vision. However this is only the case with NEW episodes (same as last season). New eps are on Fridays, if you watch on any other day, it's usually stretched (last season anyway). Not sure why they do this.
I can report that I had to re-record a Saturday morning airing just last week because the premiere the night before was jacked-up for a few seconds with important dialogue lost in the mess--I sensed a CN problem, no Dish's fault--and did not have CC. That Saturday airing was in proper HD (and had CC), just like the Friday premier. Let's hope CN keeps it that way for all subsequent airings.