165104 passes Didcot North Junction on 16 February 2018 with the 2L29 11:37 Oxford to Didcot Parkway GWR service. I had been expecting to get my first picture at this location of a Class 800 bi-mode unit just before this arrived, but that working, the 1P25 09:54 Great Malvern to Paddington, was terminated at Oxford. This brought to an end a truly appalling week of train services over the Cotswold Line. Five trains cancelled on Monday, three on Tuesday, two on Wednesday, an unbelievable eight on Thursday, and two on Friday. Although not necessarily due to the introduction of the new Class 800s, this is a totally unacceptable level of service, and the worst I can ever remember on the Cotswold Line. Bring back Class 50s and Class 117 DMUs. I don't recall there be many cancellations in the 1980s!