How appropriate is it to display machine guns with the Holy Quran positioned between them in a television program, and does that portray Islam as a religion of bloodshed?

We did not follow the program mentioned. As for the depicted interface that suggests Islam is a religion of bloodshed, this is not necessarily the case, although it is possible. However, one must think positively of a Muslim. The image could mean that Islam is under attack, and its enemies have ganged up on it, or that Islam needs a force to defend and protect it, as in the verse: "We have already sent Our messengers with clear evidences and sent down with them the Scripture and the balance that mankind may observe [themselves] in justice. And We sent down iron, wherein is great military might and benefits for the people, and so that Allah may make evident those who support Him and His messengers unseen. Indeed, Allah is Powerful and Exalted in Might." Al-Sa'di said: Allah supports His religion with the Book and the sword. This does not mean that Islam spread by the sword, but rather that the sword was used to remove obstacles that stood between people and the true religion.