TL is just another stop for DTD, so like DTD you can not go directly to a park.
BB is different. There is service to EPCOT(thru CSR) till 11:00PM, every day, even when BB is closed. There is service to and from HS(thru AKL), when BB is closed, but I am not sure how late that bus runs. When BB is open there is also buses to and from AK. There is nothing to MK or TTC but you can always take the CO bus and walk.
In the morning, before 11:00 AM, there will be buses going from TL to DTD. After 11 the buses will stop at TL after leaving DTD. Also, no buses to or from BB from DTD.