I used to watch(/enjoy) the year-end song show before, but I don't now,
because there are other (more) interesting shows available(/broadcast) to enjoy.とか
-because other TV shows broadcast on other channels are more interesting.などと
なります。
★紅白歌合戦の視聴率が高かった時から(以前から)裏番組は勿論複数ありましたね。