This episode has a lot of aspects to analyze. A complete presentation sequence after several years, with a good chalkboard gag. An emotional A-plot with an unoriginal conflict but with a great resolution, in addition to providing many moments of fun. A B-plot that does not respect the story; But, does anyone want the farce of Armin Tanzarian to be respected? At least me, no. It is original and also has several moments of laughter, perhaps being the best of them, the relationship between Skinner and Barney. A really fun C-plot but with two final filler scenes. A great epilogue with Skinner and Agnes watching Game of Thrones. And a really fantastic spin-off, based on brief adventures of Hans Moleman.
Overall, Grampy Can Ya Hear Me is a pleasantly overloaded episode, full of pleasant and fun moments