CREATE TABLE "digital_channels" (
  "channel" real,
  "video" text,
  "aspect" text,
  "psip_short_name" text,
  "network" text
);

Question: Which network has more than 31.4 channels with a 4:3 aspect?
SQL: SELECT "network" FROM "digital_channels" WHERE "aspect"='4:3' AND "channel">31.4;

Question: Which video is on channel 31.2 with a 4:3 aspect?
SQL: SELECT "video" FROM "digital_channels" WHERE "aspect"='4:3' AND "channel"=31.2;

Question: Which video has a 16:9 aspect?
SQL: SELECT "video" FROM "digital_channels" WHERE "aspect"='16:9';