In the television series, the line is known as Arthur's Branch Line and was introduced in the fifth season as the Fishing Village Line. When the branch line opened, the Fat Controller first put Thomas in charge, but when Thomas had an accident, Arthur was able to ask the Fat Controller if he could run the branch line. The Fat Controller agreed and, as a result, Arthur now has his own branch line.
The line starts at the Transfer Yards and travels to Ballahoo and forks into two ways one way going toward Henry's Tunnel and the other going to Norramby. The Norramby line then comes to The Fishing Village, Norramby Church Station and Norramby Seaside Station and ends in Norramby. The "Henry's Tunnel" line travels through Ballahoo and cross over the Hoo Valley Viaduct and ends at The Main Line.
- For some reason, it was said that the branch line was new in the seventh season, but this line was already introduced in the fifth season.