Also known as Greene King House Ale / Landlord's Choice (Name varies)
Commercial description Greene King brew a 3.9% bitter for use by pubs in their portfolio to label as their house beer. Names include: "Eagle DNA", "The Bull Finest Ale", "Assembly House Landlords Choice", "Whiteley Best Bitter Landlord’s Choice", etc
The brewer markets this same or near-same product by more than one names. This can be the result of a brewer distributing this beer under different names in different countries, or the brewer simply changing the name, but not the recipe at different points in time.