Parks and Recreation is coming back for a one-off half-hour TV special. Amy Poehler, Rashida Jones, Aziz Ansari, Nick Offerman, Aubrey Plaza, Chris Pratt, Adam Scott, Rob Lowe, Jim O’Heir, and Retta will all return along with some surprise returning favourites. I’d be happy enough with just a half-hour remembrance of ‘lil Sebastian, but I guess this spe…