Here's the tentative TV schedule on ESPN, two hours every Tuesday starting July 22 at 9pm:
Link to ESPN article
• July 22 - Event 1: $10,000 pot-limit hold 'em
• July 29 - Event 2: $1,500 no-limit hold 'em
• Aug. 5 - Event 3: $1,500 pot-limit hold 'em or Event 4: $5,000 mixed hold 'em
• Aug. 12 - Event 5: $1,000 no-limit hold 'em with rebuys
• Aug. 19 - Event 45: $50,000 HORSE
• Aug. 26 - Event 50: $10,000 pot-limit Omaha
• Sept. 2 to Oct. 28 - Event 55: $10,000 no-limit hold 'em main event
• Nov. 4 - Event 55: WSOP main event final table preview show
• Nov. 11 - Event 55: WSOP main event final table
So preliminary events get 2 hours (reducing HORSE from 6 to 2), while the Main Event gets 20 hours of coverage.