Blaenplwyf transmitting station

Columns: Frequency | UHF | kW | Service | System
471.25 MHz | 21 | 100 | S4C | PAL System I | 482.166 MHz | 22+ | 2 | Digital 3 & 4 ( Mux 2 ) | DVB-T | 495.25 MHz | 24 | 100 | ITV1 Wales | PAL System I | 506.166 MHz | 25+ | 2 | SDN ( Mux A ) | DVB-T | 522.000 MHz | 27 | 40 | BBC A | DVB-T | 538.166 MHz | 29+ | 1 | Arqiva ( Mux C ) | DVB-T | 551.25 MHz | 31 | 100 | BBC One Wales | PAL System I | 562.166 MHz | 32+ | 2 | BBC ( Mux B ) | DVB-T | 570.166 MHz | 33+ | 1 | Arqiva ( Mux D ) | DVB-T | 751.25 MHz | 56 | 4 | Channel 5 | PAL System I

Example questions:
What type of system is is used by the service that is a patron of The Radio Academy of the Blaenplwyf transmitting station ? | How many people work at the station that operates at 27 UHF of the Blaenplwyf transmitting station ? | What system type was used by the service that provided the show Big Brother from the Blaenplwyf transmitting station ? | What system type was used for the service that the first television channel to be aimed specifically at a Welsh-speaking audience of the Blaenplwyf transmitting station ? | What is the UHF of the service that is the world 's oldest national broadcaster of the Blaenplwyf transmitting station ?

Answers:
DVB-T | 22,000 | PAL System I | PAL System I | 27