TV.checkAvailableTVChannel C# (CSharp) Method

    private void checkAvailableTVChannel()
    {
        if (currTVChannel<0)
        {
           currTVChannel=0;
        }
        else if (currTVChannel >= tvChannelMaterials.Length)
        {
            currTVChannel = tvChannelMaterials.Length - 1;
        }
    }