Clean & Enhance Audio Recording to make voices clear

I have a single indoor recording that suffers from background noise like hissing/television and quiet muffled speech. I need it cleaned so every word is intelligible as possible without introducing any robotic artifacts. Please remove the steady hum, tighten up the dialogue, restore the tonal balance and deliver a high-quality WAV (or the original format) that is broadcast-ready. You are free to use iZotope RX, Adobe Audition, Audacity plugins—whatever gets the clearest result—as long as the final track sounds natural and consistent from start to finish. When you return the file, let me know what processing chain you used so I can keep it on hand for any future sessions.