That clip first appeared on NSC in about 1938...
I found a gem of a piece of film on the wonderful British Pathe film collective now available on line. You can find this particular item by using the search engine and typing in "Brighton Football". Its actually about Arsenal training at the ground in 1938.
British Pathe
British Pathe - ARSENAL IN TRAINING AT BRIGHTON
In its way, this archive is as interesting as the Regency Society's collection of old photos of Brighton and Hove.
If you are looking at wasting a whole afternoon or evening ... click on SEARCH.
yoo shood no!That clip first appeared on NSC in about 1938...
The 2 crossbars at the North Stand end look rather strange at 26secs