Was 1964 a landslide?

[they don't love you like i love you]

I go mostly by PV for determining landslides, you can't say 1912 was a landslide for example even though Wilson had a massive electoral victory, similarly I do consider 1920 a landslide even though Harding lost many states. Still I'd put 450 as the min for landslide margin, so 1964 classifies electorally, and PV wise it most certainly was.