After eight extraordinary seasons that included the series’ 100th episode and a two-hour musical, Universal Cable Productions’ and USA Network’s original scripted comedy series from Steve Franks, “Psych” will end its successful run on Wednesday, March 26. To commemorate this momentous occasion, leading Hollywood collectibles auction site ScreenBid will host an exclusive online auction of about 200 props and memorabilia straight from the set of “Psych.”