Well it sure seemed as if there have been more Thursday games in my area this year, and Louisa plays Albemarle next Thursday. Maybe that's why it felt like an increase this year to me.
UVA plays on Friday night on Friday, Sept. 25. The Hokies play on Friday, Oct. 9. Many high schools elected to play on Thursday that nights those weeks to escape the competition (or maybe because the AD's have season tickets). Here's an article from Bluefield Daily Telegraph