DB<106> unshift @AoA, \@new_arr 
 => 4

  DB<107> \@AoA
 => [
  ["pebbles", "bamm bamm", "dino"],
  ["fred", "barney"],
  ["george", "jane", "elroy"],
  ["homer", "marge", "bart"],
]

  DB<108> unshift @AoA, [qw/ directly as literal/]
 => 5

  DB<109> \@AoA
 => [
  ["directly", "as", "literal"],
  ["pebbles", "bamm bamm", "dino"],
  ["fred", "barney"],
  ["george", "jane", "elroy"],
  ["homer", "marge", "bart"],
]