On a budget, fix the three things that ruin the show.

You bought the cameras. Then the air conditioner drowned out your guest, nobody knew which camera was live, and the director had to shout across the room. A budget studio works when you fix the three things that can ruin the show: sound, tally, and talkback. First, sound. Foam on the wall tames echo inside the room. It does not stop noise getting in. So before you buy anything, listen in the room with the equipment running.

Get the microphone close. If outside noise is the problem, a quieter room beats more panels. Second, tally: the red light that tells everyone which camera is live. Check what your switcher and cameras support before you buy lights. Then rehearse camera changes, and make sure the light follows the live shot. Third, talkback: the director's private line to the crew. Decide who needs to hear whom. Test it with every headset on, and keep crew chatter out of the audience mix.

Simple and tested beats complicated. Here's the budget twist. The most expensive camera can't fix a room you can't hear in, or a crew that can't talk to each other. Fund sound, communication, and camera cues first. Then rehearse a short show, record it, and listen back.