I went to the MBTA website today to look at the 350 bus schedule (from Alewife to BurBlington). Rather than specifically view the 350 schedule, I used the trip planning "feature" of the website.
I selected Alewife as the departure, plugged in the destination by hand, and added an arrival time (randomly, 11am today, Saturday). It gave me two results:
(1) Alewife Station Busway at 10:30, take the 350.
(2) Walk .64 miles NW from Alewife, catch the 62/76 inbound to Alewife Busway, wait 25 minutes, then get the same 10:30 350 bus.
Yeah, sure, I have that much time to kill.