Some of the critics considered the hour long episodes to be unsatisfactory, supposedly due to there not being enough story to sustain the running time.
Alfred Hitchcock was famous for his highly amusing opening and closing narratives. However, for each episode more than one opening and closing were filmed, as Hitchcock's famous jibes at the sponsors were unappreciated in the European markets. So for each episode, Hitchcock filmed two openings and two closings: one would be for American viewings (jokes about sponsors) and the second would be for European showings (jokes about Americans and not about sponsors). For most of the third season, Hitchcock even did the opening and closings in French and German, as he spoke both languages fluently.