SELECT 
				c.channel_name, a.program_title, 
				TIME_FORMAT( a.start_time, '%H:%i' ) AS start_time, 
				TIME_FORMAT( a.finish_time, '%H:%i' ) AS finish_time
			FROM 
				channel c 
			INNER JOIN
				program a ON a.channel_id = c.channel_id 
			INNER JOIN 
				program b ON a.channel_id = b.channel_id 
			AND 
				a.start_time >= b.start_time 
			AND		
				b.date = CURRENT_DATE()
			AND
				b.finish_time BETWEEN CURRENT_TIME()
			AND 
				ADDTIME(CURRENT_TIME(), '12:00:00') 
			GROUP BY 
				a.channel_id, a.program_title, a.start_time, a.finish_time 
			HAVING COUNT(*) 
				<= 2
			ORDER BY 
				a.channel_id, a.start_time