I will resolve as soon as each person or music group is announced as musical guest, and re-resolve if necessary if they cancel their appearance. A combined host/musical-guest counts.
If an episode has multiple musical guests who are not part of a single music group (this is really unusual), I will resolve in equal percentages to each guest. Season 49 is the current 2023-24 season of Saturday Night Live.

List of historical musical guests for reference: https://en.wikipedia.org/wiki/List_of_Saturday_Night_Live_episodes_(season_31%E2%80%93present)

See also:

General policy for my markets: In the rare event of a conflict between my resolution criteria and the agreed-upon common-sense spirit of the market, I may resolve it according to the market's spirit or N/A, probably after discussion.