Question: How many Episode Counts have an Actor of liz carr?
SQL: SELECT COUNT("Episode Count") FROM "2-143678-3" WHERE "Actor" = 'liz carr';

Question: Which Years have a Character of Dr Trevor Stewart?
SQL: SELECT "Years" FROM "2-143678-3" WHERE "Character" = 'Dr Trevor Stewart';

Question: Which Series has an Actor of Tom Ward?
SQL: SELECT "Series" FROM "2-143678-3" WHERE "Actor" = 'Tom Ward';