The Twin Falls County Fair enters its third day today at the fairgrounds in Filer. The theme this year os “Carnival Lights and Western Nights.”  Keeping with the western theme, there are plenty of country things going on. Traditional events such as the famous PRCA Rodeo which debuted last night and will run through tomorrow night.  The Inland Empire/ Royal West midway, 4-H competition and Destruction Derby are also part of the fair.   One of the most talked about aspects of the fair this year is the addition of the beer garden. Fair Manager John Pitz says the county worked hard to have the potential extra money maker without compromising the safety and fun of all fair goers.  Joey and Rory and The Band Perry concert is scheduled for  Sunday night and the ever popular demolition derby takes place on Monday night, the last night for the fair.