Each TV station makes dramas with audience ratings in mind.
When each TV station makes new dramas they are conscious of viewing figures.
TV stations are very conscious of audience ratings when they make new dramas.
「各テレビ局はドラマ制作において視聴率を意識していると思われます」＝ Each TV station makes dramas with audience ratings in mind. / When each TV station makes new dramas they are conscious of viewing figures. / TV stations are very conscious of audience ratings when they make new dramas.
ボキャブラリー
each TV station ＝ 各テレビ局
make ＝ 制作する
drama ＝ ドラマ
audience rating/viewing figures ＝ 視聴率
in mind, be conscious of ＝ 意識する
イギリス 
