CREATE TABLE "table1_18733480_1" (
  "episode_num" real,
  "air_date" text,
  "team_1" text,
  "players_left_after_round_1" text,
  "team_2" text
);

Question: How many times was team 1 the wykeham wonderers?
SQL: SELECT COUNT("players_left_after_round_1") FROM "table1_18733480_1" WHERE "team_1"='Wykeham Wonderers';

Question: What is the original air date that had the wykeham wonderers as team 1?
SQL: SELECT "air_date" FROM "table1_18733480_1" WHERE "team_1"='Wykeham Wonderers';

Question: Who was team 1 when the chalkheads were team 2?
SQL: SELECT "team_1" FROM "table1_18733480_1" WHERE "team_2"='Chalkheads';