It’s not huge money for a guy who made $4.9 million last year. Still, Discovery Communications provided a nice financial sweetener to help COO Peter Liguori ease into his new gig as interim CEO of OWN: Oprah Winfrey Network. The company has promised him a one-time bonus for 2011 that will be at least $250,000 and could go as high as $500,000 depending on OWN’s performance, Discovery says in an SEC filing. He’d still be entitled to the bonus if he’s fired without cause, or has a good reason to quit. Discovery also says it will pay Liguori $60,000 to “defray the cost of his apartment in Washington, D.C.,” and give him up to $2,500 to move to Los Angeles, where OWN is headquartered. Discovery has assured Liguori that he’ll run OWN at least into 2012.