Good heavens! that looks nice. Might have to put a couple of those on Woodhead, only slightly out of patch...
Interesting that you chose 235 and Bury 201. We parked them together at the Trans Lancs show in Manchester in September, see photo below. And I have parked it next to Bury 177 too... The one you saw in Sheffield was a Regent V - mine is the Regent III with the old-fashioned radiator and it lives in the Museum of Transport Greater Manchester.
After I wrote the post last night, I listened to the YouTube video and didn't like what I heard - too much traffic noise. So I'll see what I have at home that would loop nicely and drop a PM with a link to a decent file that should loop well.
Paul
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Rochdale 235 and Bury 201, Trans Lancs Historic Vehicle Show, Heaton Park, Manchester, September 2015 by Paul Williams, on Flickr
Nocturnal Regent loveliness, Museum of Transport Greater Manchester, November 2015 by Paul Williams, on Flickr