Hypothetical timeline if you assume the crossovers and cameos are genuine as well as the Shazam costume being reused was continuity suggestive:
1942 - Wonder Woman S1
1952 - Adventures of Superman S1
1953 - Adventures of Superman S2
1955 - Adventures of Superman S3
1956 - Adventures of Superman...
Honestly, no idea. It's a weird universe to classify. I do think you could take it as this, though:
Adventures of Superman
Batman
The Green Hornet
Shazam!
The Secrets of Isis
Wonder Woman
Legends of the Superheroes
(Potentially James Bond, The Man from U.N.C.L.E., The Avengers, The Six Million...
It's not just that. I believe there was other details dating it, too. I believe an episode with the Penguin becoming Mayor referencing people and events from 1966 onwards. Also, it's impossible to squish the entire Batman '66 comics in 1966 anyway. The Wonder Woman crossover you mentioned would...
I could see the execution being cancelled due to Jim's actions being justified, too (they tried to rape a woman and child, both of whom could back up Jim's claims). That, or Jim is really crafty and escaped, or someone let him out. A lot of things can justify them living.
After Jim, Hannah and Selena were rescued, they were taken to France and became internationally renowned as the Manchester Three. Jim was arrested and sentenced to death for killing Major West and his soldiers, and was scheduled to be executed by firing squad. Nearly twenty-eight weeks after the...
It would include Monster War (a crossover in the Top Cow Universe that acts as a prequel to Ash vs Classic Monsters), and Hack/Slash.
Hack/Slash connects to... uh... a lot of things.
Evil Dead (direct crossover)
A Nightmare on Elm Street
Friday the 13th (unofficial crossover)
Dexter...
For some reason, I feel like a lot of the games could be canon to the film universe, too. The upcoming show might also take the pre-Harry Potter chronological stories as canon too, just to confuse matters further.
I would guess, and I have no real idea, that the novels are sequels to the whole trilogy while the comics act as a sequel to The Good, the Bad and the Ugly, set, I guess, before the rest.