The UFC’s popular “Primetime” series will return this fall and winter with regularity.

Sources close to the promotion told MMAjunkie.com (www.mmajunkie.com) that the UFC is planning to produce “UFC Primetime” shows for its final three pay-per-view cards of the year – UFC 166, UFC 167 and UFC 168.

No formal announcement from the UFC has come yet for any of the three, but with the transition next month to FOX Sports 1 as its primary cable home, that new network is expected to broadcast the episodes. Broadcast dates and times are not yet known.

Past “UFC Primetime” episodes have aired in three parts, filming documentary-style behind-the-scenes footage of pay-per-view headliners in the days leading up to their fights, and being edited together close enough to air dates that viewers often seen what those fighters have been doing just a couple of days prior.

UFC 166, which takes place Oct. 19 at Toyota Center in Houston, will have a “Primetime” episode geared around heavyweight champion Cain Velasquez and former champ Junior dos Santos. The two will fight for the third time – each has one win again the other in title fights.

UFC 167 will be Nov. 16 at MGM Grand Garden Arena in Las Vegas with a main event welterweight title fight between longtime champ Georges St-Pierre and top contender Johny Hendricks.

And UFC 168 will be the promotion’s annual year-end card, also at MGM Grand Garden Arena. That show will feature a main event rematch between new middleweight champion Chris Weidman and former longtime champ and pound-for-pound great Anderson Silva. Getting co-main event billing on that show is a women’s bantamweight title rematch between champ Ronda Rousey and her top rival, Miesha Tate. The two will have just wrapped the airing of the upcoming Season 18 of “The Ultimate Fighter.”

The UFC most recently featured a “Primetime” special for UFC 157 in February, which featured Rousey’s UFC debut against Liz Carmouche. Prior to that, UFC 154 in November had the series previewing St-Pierre’s title fight against Carlos Condit.

For more on UFC 166, UFC 167 and UFC 168, stay tuned to the UFC Rumors section of the site.

(Pictured: Chris Weidman)