Projector was my first choice. But considering how cheap big tv's have become, it will be far more convenient option.In my experience projector is more effective. It doesn't matter the room is lit or not, we're not watching movie.
Edit: on second thoughts, A big TV might suffice for a 150 sqft room.
Pre-recorded lectures of content being written on Microsoft one note on a tablet. Mostly related to Tax / Accounts. Will be played using a HDMI from a ssd.What would be the content being displayed like? Will it be videos, images, or text? If text, then PowerPoint slides or handwritten text? Are you going to be doing coding lessons?
In this case, you need to ensure that the TV is big enough for the fonts to be readable from the back. Due to the text being in video, the quality may have deteriorated as well. So make sure it looks slightly larger than regular readable size to make up for any blurriness.Pre-recorded lectures of content being written on Microsoft one note on a tablet. Mostly related to Tax / Accounts. Will be played using a HDMI from a ssd.