[autoavia]

 We probably shouldn't be surprised at this as the model railways are their main profit generator with the other brands much lower down in the pecking order.

 The other way of looking at it is that, assuming model railways is the main profit generator, the series is also an opportunity to promote the other products and brands.

It is disappointing that only one programme is going to be about Scalextric and that will supposedly be about the Formula E car which, I must admit, has no interest for me whatsoever. It would have been better to have something to promote a wider part of the Scalextric range but I wonder how much of the content was chosen by the production company rather than by Hornby.
My past experience of TV production companies is that they use the content that best suits their ideas rather than looking for something which suits both the production company and others involved.