(This post with regard to the one immediately preceding it. Difficulties with the software today.

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Thanks for this, Pr. Stoffregen. The sort of information you quote from the Leaders' Desk Edition is precisely the sort of thing I'm looking forward to in the long-promised LSB Desk Edition. Thanks as well to all the others who provided information regarding this issue.
The section quoted by Pr. Stoffregen does, however, raise some questions for me. First, there is apparently a bit of difference in nomenclature between ELW and LSB. In LSB, The Circumcision and Name of Jesus, The Purification of Mary and the Presentation of Our Lord, and All Saints are identified as "principal feasts of Christ", while Reformation Day is identified as a festival, (an observance a step down in priority from a feast). I can understand the Feasts of Christ taking precedence over a Sunday in ordinary time, but I'd like to understand the rationale for the Festival of the Reformation doing so as well, but not necessarily other festivals. (And of course, in most Lutheran churches of which I'm aware, Reformation and All Saints not only take precedence over a Sunday that falls on the 31st of October and 1st of November respectively, but are religiously transferred to the last Sunday in October and the first Sunday in November whatever the dates.)
A larger question comes in response to this rubric:
However, because when they coincide with a Sunday the following festivals always occur in the seasons of advent, Lent, and Easter, these festivals never replace a Sunday observance: Andrew (November 30), the Annunciation of Our Lord (March 25), Mark (April 25), Philip and James (May 1), and Matthias (May 14). First a minor question: In the LSB lectionary, the Festival of St. Thomas is 21 December. If I read one post above correctly, in the calendar used by ELW, the Festival of St. Thomas is observed in July. If it hadn't been moved, would it be included in the above list?
More significantly,
why does a festival that falls on a Sunday in Advent, Lent, or Easter not take precedence over the Sunday? Two are penitential seasons and one isn't, so it isn't just that festivals shouldn't be celebrated on a Sunday that is in or of a penitential season. And what is the rationale for not including the Christmas season? I seem to recall that someone, perhaps even Pr. Weedon, once shared a 'rule of thumb' that somehow referenced the liturgical color of the Sunday vs. the feast/festival to the effect that a red feast can be celebrated on a green Sunday, but not on a white one, or something like that.
Is there a liturgical rule that differentiates between Sunday observances based on the Year of our Lord vs. the Year of the Church, that is from Advent through Pentecost, excepting the Sundays of the Epiphany Season between the Feast of the Baptism of Our Lord and the Feast of the Transfiguration on the one hand and the Sundays after Pentecost and the ordinary Sundays in the season of Epiphany on the other? For example, what of the Festivals of the Confession of St. Peter (18 January) and the Conversion of St. Paul (25 January), both of which fall on Sundays in 2015?
And finally, what of the Festival of the Holy Innocents, Martyrs (28 December, a Sunday this year) and St. John, Apostle and Evangelist (27 December, a Sunday in 2015)? If I read the ELW rubrics above correctly, would that be up to local choice, based on a judgment of whether "observing the festival (with its propers) . . . outweighs the value of observing the Sunday with its propers"? Is there any direction from LSB regarding this?