WSB is screened live on Eurosport, highlights are shown on itv4 I think.
MGP is on BTSport & highlights are on Quest (?)
All these are on Sky but you have to pay extra to get BTSport.
Itv4 & Quest maybe on Freeveiw...
So you will need a TV with a digital arial, freeveiw enabled TV or a box is the cheapest option...(the TV I have has built in freeveiw, but I dont have an arial as I have SKY...)
Or if you have a look there are a few streaming sites on the web that show both...
Making up since 2007, sometimes it's true...Honest...