Often a fair bit of vintage coaching stock is stabled there, and the odd loco, but not actually on display as such.
The sidings are not open to the public, though IME an exception is sometimes made if you look sensible, ask nicely, and offer a donation towards railway funds.
A partial view may be obtained from the car park, and with a long lens or binoculars a fairly good view from the public road where it crosses the line on a bridge.
Exceptionally, the odd train runs from Bishops Lydeard to Norton halt or platform, but this is not the norm.
On such occasions a good view may had from the train of any stabled stock, and also an unusual view of the GWR main line.