Sorry, hate to say it, but what I quoted above is all INCORRECT information.
Pioneer Hall is in Fort Wilderness, not Wilderness Lodge -- they are 2 different properties.
There's no such thing as a bus from Downtown Disney to Mk or to any of the other theme parks.
So on to the OP's question ...
There are 2 "good" ways to go from DTD to Hoop Dee Doo Revue. Which you do is up to you.
- Bus from DTD to Wilderness Lodge. Boat from Wilderness Lodge to Fort Wilderness. Pioneer Hall is VERY close to FW's boat dock, it's like a two-minute walk.
- Bus from DTD to Fort Wilderness. From that point, it would be a VERY long walk to Pioneer Hall. You'd need to take the FW internal shuttle bus to Pioneer Hall.
Personally, I'd take the first one on the list.