def set_up_default_channels(clean_up=False):
    """Block of text to populate a Text widget."""
    channels = ["@my-favorite-channel, 5",
                "@OdyseeHelp#b, 4",
                "@lbry:3f, 6"]

    if clean_up:
        channels = ["@OdyseeHelp, 2",
                    "@my-favorite-channel-vmv, 15",
                    "@lbry, 1",
                    "@The-Best-Channel-ABC, 5"]

    channels = "\n".join(channels)
    return channels