We attended the Easter Vigil every year, faithfully, and I can't recall it every beginning any later than 8:00.
This was in the late 50s and early 60s. Our Italian monsignor was not one to play fast and loose with the rules, either.
Anticipated Saturday evening masses were allowed in mission dioceses with a shortage of priests, as well.
This is another instance where the ultra-trads marginalize themselves, with their jots and tittles.
The FSSP, which is widely admired around here, also celebrates the Tridentine Mass on Saturday evenings.
I'll bet that chaps, doesn't it?
Where is that Saturday anticipated Mass offered by the FSSP - Compromise City?