TASK DEFINITION: You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.
PROBLEM: Category: TV BEFORE & AFTER 
Clue: Mr. Belushi & the 3 kids ditch ABC to enact discriminatory & segregationist policies

SOLUTION: according to jim crow laws

PROBLEM: Category: BELCHING 
Clue: Before a volcano belches it forth, it's called magma

SOLUTION: lava

PROBLEM: Category: OPERA 
Clue: After his 1711 opera "Rinaldo" made his name, he immediately moved from Hanover to England

SOLUTION:
g.f. handel