ET’s Nischelle Turner sends off the stars of ‘Downton Abbey’ — Jim Carter (Mr. Carson), Allen Leech (Tom Branson), Laura Carmichael (Lady Edith) and Michelle Dockery (Lady Mary) — in style, as they reunite aboard one of London’s iconic double-decker buses to say goodbye to the beloved franchise after 15 years. ‘Downton Abbey: The Grand Finale’ is now in theaters.
