CREATE TABLE "availability_of_channels_from_various_pr" (
  "position" real,
  "channel" text,
  "analogue_terrestrial_channel" text,
  "digital_terrestrial_channel" text,
  "internet" text
);

Question: How many digital terrestrial channels are there for channel 4?
SQL: SELECT COUNT("digital_terrestrial_channel") FROM "availability_of_channels_from_various_pr" WHERE "channel"='Channel 4';

Question: What is the channel that is on digital terrestrial channel 10?
SQL: SELECT "channel" FROM "availability_of_channels_from_various_pr" WHERE "digital_terrestrial_channel"='10';

Question: What is the digital terrestria channel number for itv3?
SQL: SELECT "digital_terrestrial_channel" FROM "availability_of_channels_from_various_pr" WHERE "channel"='ITV3';

Question: What is the position of digital channel 5 44 (+1)?
SQL: SELECT "position" FROM "availability_of_channels_from_various_pr" WHERE "digital_terrestrial_channel"='5 44 (+1)';