A:AnswerRoku uses an HDMI connection, so I will assume you mean to use an HDMI switch to connect both devices to this TV, so the answer is, yes, you can. If you refer to USB hub to power the devices, then no, you cannot do that.
A:AnswerThis is not an all weather TV. However, if you have an enclosed patio (such as a sun room or screened in porch) this will probably do nicely. It has decent volume and brightness.
A:AnswerHere is the link for the User Guide: https://files.bbystatic.com/ShG4i35V1hUr0PYr%2FZwTAw%3D%3D/Insignia%2BNon-Connected%2BTV%2BManual_2020_20-0082_V2_EN_Final_lr.pdf
A:AnswerYou can choose 3 settings for the speakers: Auto (they turn off if you plug something into the headphone jack), On (they remain on even if something is plugged into the headphone jack), and Off (well, they are off :-)
So in the On position you can achieve what you want to do.
A:AnswerBy my tape measure they go 26 3/8 inches from tip to tip. There are little rubber pads on the bottom of the feet. I measure them as 26 inches from pad edge to pad edge. So unlike an earlier post of the feet being 26.73 inches my measurement on my assembled TV (and I believe it is assembled correctly) shows it would just fit on your stand assuming it doesn't have any lip higher than 2" on either side that would bump the frame of the TV that extends beyond the feet. My stand is real wood. The little feet seem to grip fairly securely.
