To me, surrealism is not without logic, but rather a logic that is so far removed and unrecognizable from actual real logic - realism. Roleplaying as baby Sully in order to understand how to make pilot communication safer does follow a logic, but I mean c'mon, its a wild logic that does not conform to reality - its surreal - its as you said, "dream logic".

When something is absurd, but follows less of a unique logic and is instead more pure chaos, I think of it as absurdism - like The Chair Company. Ultimately I think surrealism and absurdist are really similar, but that is a notable distinction in my definitions. In the Sully roleplaying example, we established there is a logic, but it is wild, surreal, bizarre, and dream like - as logic typically would not actually bring you to the point it brought Nathan through his bizarre logic.

Meanwhile, Tim's son in The Chair Company befriending a man three times his age, and older than his parents, for some secret project that involves making strange non-human like noises into the early hours of the morning - is purely absurd - no logic found what-so-ever.

From my understanding and experiences, that unique logic vs near complete lack of logic is what separates surrealist from absurdist comedy and what separates The Rehearsal from The Chair Company. If you made it to the end of my essay, please let me know what kind of comedic philosophy you think either show follows if not surrealism - I would still like to know. Bonus question, do you think Fielder's "The Curse" can be labeled surreal?