Cardiff's football runs through Cardiff City and the south Wales derby with Swansea, which is one of the more fiercely contested fixtures in British football and is treated accordingly. But rugby is the other half of the picture and arguably the larger one: the Principality Stadium in the middle of the city hosts Wales internationals and Six Nations weekends that shut the centre down, and Cardiff Rugby play in the United Rugby Championship. For households here that means two quite separate calendars, football and international rugby, that have historically sat with different broadcasters. Welsh-language coverage adds a further consideration. Checking whether one service handles the rugby internationals and the football together is the practical test in this city.
Cardiff has strong coverage across the city and out through Roath, Canton, Llanishen and towards Penarth and Barry. The city has a large student population concentrated around Cathays, with the dense rented terraced stock that goes with it and the usual restrictions on installing anything. Newer bay developments are apartment-heavy with the same limitation. The distinctive test here is the two-calendar one. Cardiff households frequently want both club football and Wales international rugby, which have historically sat with different broadcasters, and Welsh-language coverage adds a further consideration. Confirm all of that inside the trial rather than assuming any of it follows from the rest.