Who is the Distributor in this example?

Here are two sets of images for 2 'Castle Vision' VHS videos. For one of them, 'Castle Communications PLC' are responsible for the production of the title, the other - 'Casper', they are not. However, in both instances, both on the box and on the tape is the phrase "A Castle Communications PLC Release" alongside the more obvious "Castle Vision" logo. This is the case across most of their titles. (On Wikipedia it says Castle Communications' video imprint was Castle Vision). 

Now I'm not sure as to which form of their name I should go with as the Distributor. For example in both cases, should it read "Distributor: Castle Communications - Attribute Field: as Castle Vision"? I have read the guidelines and find I can make a case to go multiple ways about this. What's the precise input answer for this? And an explanation would be most appreciated as well. Thankyou in advance!