"On weekdays of Great Lent, the Divine Liturgy is not celebrated, because the joy of the Eucharist (literally "Thanksgiving") is contrary to the attitude of repentance which predominates on these days. However, since it is considered especially important to receive the Holy Mysteries (Holy Communion) during this season, the Liturgy of the Presanctified—also called the Liturgy of St Gregory the Dialogist— may be celebrated on weekdays. Technically, this is not actually a Divine Liturgy, but rather a Vespers service at which a portion of the Body and Blood of Christ, which was reserved the previous Sunday, are distributed to the faithful. Most parishes and monasteries celebrate this Liturgy only on Wednesdays, Fridays and feast days, but it may be celebrated on any weekday of Great Lent. Because the Divine Liturgy is not celebrated on weekdays, it is replaced with the Typica, even on days when the Presanctified Liturgy is celebrated. On Saturday and Sunday the Divine Liturgy may be celebrated as usual. On Saturdays, the usual St John Chrysostom is celebrated; on Sundays the more solemn and penitential Divine Liturgy of St Basil the Great is used. " (with grateful thanks to Wikipedia).
How fascinating. Imagine if we stopped all weekday celebrations in the SEC for the duration and had Reserved Sacrament Communions only. We could use the nice shiny new Blue Book on Saturdays and only the 1929 Prayer Book on Sundays. Doubtless this would utterly appal some - but might drive home the difference between Lent and the rest of the Liturgical Year to the majority of the people with some force. I personally kinda regret the "sameness" of our liturgy in most parishes. Yes, we change colour and drop the Gloria, but the music rarely really marks the difference nor does the severity of the penitential Rite. Like it or loathe it, the old Prayer Book Confession came into its own in Lent.
Just a thought!