"EZ Seed Tape" is simple enough: a strip of biodegradable paper on to which seeds can be adhered. Planting the whole thing in a row not only gets you perfectly spaced rows of plants but does so with a minimum of seed waste.
(The man made out of terra cotta plants probably doesn't have anything to do with the product. I just thought it was cute.)
Each roll of EZ Seed Tape is $7 plus shipping. You could probably get similar results with careful planning of pilot seed holes, but this still seems like it'd save some hassle.