In the original film, Horse is established to be 50 years old. This makes him 76 years old in this series. The UK retirement age in the UK is 67, therefore he would never have been subject to a fitness to work assessment as he is to old.
At 7 mins, as the kids walk through Meadow Hall shopping centre, a lot of shoppers can be seen but noone is carrying a shopping bag.
In the opening credits there is a picture of a derailed underground carriage on top of the tail of a whale statue. That was an incident that took place in the Rotterdam area, the Netherlands, nov 2nd, 2020.