import json

inp = "/opt/epg/channels_hungary.json"
out = "/opt/epg/output.json"

with open(inp, "r", encoding="utf-8") as f:
    data = json.load(f)

data = {
    key: f"{value} ({key}) HU"
    for key, value in data.items()
}

with open(out, "w", encoding="utf-8") as f:
    json.dump(data, f, ensure_ascii=False, indent=4)

print(f"Hotovo: {out}")