Tektronix Mini Oscilloscope Model 221 worth using?

[CoogarXR]

I picked up this cute little oscilloscope at an estate sale. I was going to flip it on e'bay, but since nobody wanted it, I am going to keep it. I like that it's so small, it doesn't command much bench space

I have been wanting to re-learn the 'scope for a while now, and I wonder if this one is worth using for general audio/TV work. I haven't used a 'scope in about 15 years, so I don't remember much.

What do you think? I don't even know if it works properly. I know the dot moves across the screen, and it speeds up when you turn the sec/div knob.

If it is worth keeping, can you recommend a probe set I could buy cheap?