DVD B&R 70: Along GWR Lines Part 1: Paddington to OxfordDVD B&R 70: Along GWR Lines Part 1: Paddington to Oxford 19. 75 A look at the popularity of the Great Western Railway, the longest serving company of British railways. Alter a brief resume of what was best in the GWR, we begin our journey from Paddington, where else? Kings, Castles and pannier tanks come and go from Brunels terminus and at Westbourne Park. At Old Oak we follow Castles and Grange classes to HighWycombe before resuming our journey west