A popular PYL fan site and later wiki divided the show into seasons. But it just happened to premiere when a lot of scripted/syndicated fall shows did, so it made sense. It did have reruns during the late summer of 1986, only to have several more weeks of new episodes, presumably to air when the reruns were, only to be cancelled, with CBS giving back that half hour to the affiliates.
The last four remaining soaps seem to be the final scripted shows that don't really have a concept of seasons, even if a lot of digital guides state them, since their numbering systems tends to be similar to a lot of daytime game shows, or simply number them straight (#1, #2, #3, and so on.)
But Price was way ahead of the game; the hourlong week of trial shows in 1975 honestly feels more like a premiere week than what official records do, with the previous week "officially" being the first week of the show's fourth season on CBS. With summer reruns at the end of that season, the show became the first game show on a network to have reruns over the summer. No other network game would do something similar, full-time until LMAD in the summer of 2010.