Sometimes (not a helpful answer I know). And it is not just between Pro and Audio/HT products. A friend of mine and I took apart and compared a video cable and a digital cable made by the same company. We could see no difference in the cable construction, only the RCA plugs were a different color (same kind of plugs). The Digital cable was 40% less than the video cable. We also did a listening test and they sounded the same. One of their brands of interconnects also looked and sounded the same (again different color RCAs); and a pair sold for the same price as one of the video cables. It is all he wanted as far as quality, so he bought two pairs of the interconnects and use one pair for video and digital in his HT setup.
As a side note: I use regular black 75 ohm RG6 satellite coax cable for all my video applications, whether using F plugs or RCAs. It is very cheap and I have found none better. Never have tried the cables that cost 10 times as much. I do use expensive audio cables in critical places like between the preamp and power amp.