Signal splitters and amplifiers keep audio and video signals strong enough to arrive: distribution amplifiers that feed one source to many displays, splitters for antenna and video feeds, and the line amplifiers that compensate for long runs and repeated splits. They are the plumbing behind lobby displays, classroom feeds, and building-wide distribution.
Every split costs signal, and every amplifier buys some back - the design question is keeping the level right at the far end, not at the rack. Specify by signal type first, since RF, analog video, and digital video distribution are different hardware families, then by the number of outputs with room to grow. An amplified splitter close to the source beats a passive one followed by complaints from the farthest room. For building projects, map the distribution tree before ordering so each leg is counted once. COLAMCO quotes signal distribution hardware for business, government, and education facilities, matched to the source and display list.