Hi all, I am looking to get back into brewing as its been too long since my last brew

previously I have been a Big fan of harvesting yeast from shop bought Bottle conditioned beers (UK) but lately I am struggling to find any bottle conditioned beers at my local supermarkets

its all New Breweries with beers in half bottles or cans and it seems like the Bottle conditioned beers I used to buy are being pushed out by the new beers !!
What happened to these Bottle conditioned Beers

to mention a couple I have used before
Bengal Lancer
Coniston Bluebird Bitter
Cheers DC

FV No 1: Nowt
FV No 2: Nowt
FV No 3: Nowt
FV No 4: Nowt
Pressure Barrel No 1: Nowt
Conditioning: Nowt
Drinking: Nowt
Planning:
Yeast Bank: SafAle S04, Youngs Cider Yeast.
