Educate me about burritos, please

Horse meat and Alpo remind me of two things:

  1. The episode of All In The Family where Gloria cooks horse meat;
  2. An episode of SCTV where Lorne Greene parodies his Alpo commercials, using the trop of elderly people eating dog food. ‘Maybe [elderly man’s name] has been around so long because Alpo’s been around so long.’