Conversation so far:
When did Ernie exihibt tax evasion?
1961.
What happened?
was served with a $75,000 lien for back taxes.
how much did he evade?
$75,000.
ddi eh go to prison?
CANNOTANSWER.
Are there any other interesting aspects about this article?
His tax woes also affected Kovacs's career.
how did they affect his career?
forcing him to take any offered work to pay his debt.

Question: what did he do to pay his debt off?
Self-contained rewrite: what did Ernie Kovacs do to pay his debt off?