Name the panelists for david tennant
CREATE TABLE "series_4" (
  "episode_number" real,
  "air_date" text,
  "guest_host" text,
  "musical_guest_song_performed" text,
  "who_knows_the_most_about_the_guest_host_panelists" text,
  "coat_of_cash_wearing_celebrity" text
);
SELECT "who_knows_the_most_about_the_guest_host_panelists" FROM "series_4" WHERE "guest_host"='David Tennant';