The picture show 8-way splitters, but you can use "none", a 2-way, a 4-way, or any combination. The splitter merely is used to connect enough coax for the receivers. Since you're planning on a HR34, a DVR, and 2 receivers, I would group them such that the DVR & receivers are on one side, and the HR34 on the other. This should only require a 4-way for the DVR & receivers, and let the HR34 connect without a splitter. The fewer/smaller splitters used, the stronger the signal is to the receivers/tuners.