The syndie version of “Deal or No Deal” will premiere on Sept. 8.Gameshow, from NBCU Domestic TV Distribution and Endemol USA, will continue to have Howie Mandel as host but there are some changes in store. On the daytime skein, viewers can win cash via interactive elements and the top prize for each game will be lowered from $1 million to $500,000. “Deal” is currently cleared in 97% of the country. Top markets are the Peacock O&O’s in New York, Chicago and Los Angeles. Series is exec produced by Scott St. John.