It's fantastic and great fun to see what people used for this challenge. I bought this used Sony WX500 fixed zoom (30X) lens compact about 22 months ago on ebay for £133 plus postage. It has a 1/2.3 type Exmor R CMOS sensor and seems to be a cheaper version of the Sony HX90V minus the EVF, and I believe is missing some of that model's more sophisticated manual settings. It does have a flip-up LCD screen (not touch), which is useful for waist-level video and selfies. I shot the video using the XAVC S HD format at 25p which tops out at around 50mbps. You can also choose the same codec at 50p. AVCHD and MP4 are other options, but no 4K.
Leaving it on automatic is ok but you can get blown highlights, and the ISO is pumped up to get a useable picture inevitably resulting in some noise in lower light conditions. However, there are some manual tweaks available. You can adjust and fix the ISO setting and, in the case of the Bexhill video shot in bright sunlight, I chose 200 ISO. I selected Multi Metering Mode, Focus Area Wide, Daylight white balance, Steadyshot Active, face detection ON and Low Soft Skin Effect. I didn't grade the footage, it's straight out of camera. Being a small sensor camera, optimal image quality is achieved by shooting in well-lit situations, which was the case here. I was impressed by the fine detail captured by the WX500, and the dynamic range in the scenes isn't bad at all. It's fair to say it's a surprisingly capable and inexpensive pocket video-cam with effective stabilisation.