Sure. I don't see why not on the question of a VP150 as a mono TV speaker. Normally, anything is better than the internal TV set speakers.

However, don't use the 4 ohm setting for the 80s. For electronic reasons better explained in other posts, you should never use the 4 ohm switch provided on some receivers. Your Yammy will likely have no problem driving the efficient 80s at 'safely loud' volumes or even a bit beyond. The 4 ohm setting can cause more harm than good.

With great power comes Awesome irresponsibility.