first posted at https://web.archive.org/web/20120118152057/http://vivadixies.com/post/10967657837/yes-this-is-dog according to https://knowyourmeme.com/memes/yes-this-is-dog (which also has many variations posted in the weeks immediately afterward).
here is the moment of the 1984 Serbian film Pejzaži u magli ("Foggy Landscapes") which this meme comes from:
you can also see a slightly longer clip of it on youtube here
I was surprised too. Maybe Know Your Meme is wrong, or maybe the VHS artifacts help foster false memories of having seen it earlier :)
i edited the post to include a clip of the film it's from, btw